A few basic definitions ...
Number: a word or symbol used to indicate how great any quantity is when compared with the unit quantity, one; a count, the sum, the size, the magnitude or the aggregate of quantities; the "how many" or "how long" or "how big" measurement, size or magnitude associated with a collection, an object, a thing or a quantity. Technically ... a 'number' is not the words or symbols that we use ... but the abstract concept which is referenced by the word or symbol. In common language and communication, however, we typically use the word 'number' interchangeably with the word 'numeral.'
Numeral: the symbol (symbolism) or word(s) denoting (representing) a number.
Digit: originally used to reference a finger or a finger's breadth (about 3/4 inch) ... used in mathematics to reference the original counting (natural) numbers or numerals: 1, 2, 3, 4, 5, 6, 7, 8, 9 and 0 ... so-called from counting on the fingers ... the digit '0' normally brought into play as the value ten (10), the tenth finger ... and the words and symbolism used to represent these particular counting numbers that correspond to counting the fingers on both hands.
Cardinal Number: any number used in counting or used in showing how many or what quantity (ex: two, 6, thirty, 125, etc.) ... distinguished from ORDINAL NUMBER; the natural numbers; the positive integers; the positive whole numbers.
Ordinal Number: any number used to indicate rank order (ex:: first, 3rd, fifth, 9th, etc.) in a particular series: distinguished from Cardinal Numbers; referencing a position, location or finish (ex: The fourth house on the block, the 6th letter in the alphabet; the eighth person in line, etc.)
Natural Numbers - Positive Integers - Positive Whole Numbers: the counting numbers 1, 2, 3, 4, etc; numbers produced by counting whole units or quantities (ex: five apples, 3 tables, 9 chairs, etc.); non-fractions, non-decimals and non-negatives. Other: Technically, the number zero (naught) is not a part of the Natural Number Set but is important and used in terms of place value. The number "30" is comprised of three groups of size ten and no units. The "3" indicates the size or number of groups of ten ... while the "0" indicates no further units.
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 The Number One: 1"ONE of a Kind", "Numero Uno", "Number ONE", "An Ace", "A Singleton", "Unit", "Unity", "Single", "Solo", "Only ONE left", "A ONE Dollar Bill", "ONE Cent (a penny)", "Solitaire", "ONE for the Money, Two for the Show, Three to Get Ready and Four to Go", "ONE is a lonely Number", "The Value of a Susan B. Anthony", "A Freethrow (in Basketball)", "A Point After (in American Football - via kick)", "ONE False Move", "ONE Hundred and ONE Dalmations", "ONE Potato, Two Potato"Defn: the number expressing unity or designating a single unit or single item; the lowest cardinal or counting number and the first used in counting a series of objects; a single person, item or thing; the multiplicative identity ... any number times 1 equals the 'any number' (ex: 1 * 5 = 5); a single unit of measurement in a system such as 1 inch, 1 pound, 1 quart, 1 dollar, etc. |
ONE
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The Number Two: 2"TWO is company, three is a crowd", "A Couple", "A Deuce", "Double", "Twice as Big", "The Dynamic Duo", "A pair", "Bi-", "TWO Cups in A Pint", "TWO Pints in a Quart", "TWO Cycle Engine (TWO Stroke Engine)", "TWO Nickels in a Dime", "TWO Dollar Bill", "Like TWO Peas in a Pod", "TWO Ears, Hands, Feet, Legs, Eyes, Arms", "TWO Hands, One Heart", "TWO Sides to Every Coin/Story", A Safety (in Football)", "A Basket (Value of Normal Basket in Basketball), "A Pair of Dice (Usual Reference to TWO Dice)", "TWO Lane Highway"Defn: the sum/total of one plus one; the sum of two individual units; the cardinal number between one and three; any two people, items or things; a pair; a couple; a duo; something numbered two or having two units, as a playing card, 2 apples, face of a die, 2 inches, etc. |
TWO
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The Number Three: 3"THREE's a Crowd", "a Trio", "Triplets", "A THREE Legged Race", "A Triad", "A Hat Trick", "THREE Sides in a Triangle", "THREE Blind Mice", "THREE Little Pigs", "Goldilocks and the THREE Bears", "A Tricycle", "THREE Teaspoons Make a Tablespoon", "A THREE Pointer (in Basketball)", "A Field Goal (in American Football)"Defn: the sum/total of two plus one; the sum of three individual units; totaling one more than two; the cardinal number between two and four; any group of three people or things; something numbered three or having three units, as a playing card, 3 apples, face of a die, 3 inches, etc. |
THREE
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The Number Four: 4"Lucky FOUR Leaf Clover", "A Quartet", "FOUR Sides in a Square", "A Quad", "Quadruplets," "A FOURsome", "The FOUR Seasons", "The FOUR Points of a Compass", "The FOUR Suits in A Card Deck", "FOUR Quarts in a Gallon", "FOUR Cylinder Engine", "FOUR Quarters in a Dollar", "FOUR Lane Highway"Defn: the sum/total of three plus one; the sum of four individual units; totaling one more than three; the cardinal number between three and five; any group or collection of four people, items or things; something numbered four or having four units, as a playing card, 4 apples, face of a die, 4 inches, etc. |
FOUR
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The Number Five: 5"FIVE Fingers on a Hand", "Give Me FIVE", "FIVE Toes on a Foot", "FIVE players on a Basketball Team", "the FIVE Working Days in a Week (of Seven Days)", "FIVE Sides in a Pentagon", "FIVE Events in a Pentathlon", "A Pentagram (a five-pointed star)", "A FIVE Dollar Bill", "A Nickel (FIVE Cents)", "FIVE Vowels in the Alphabet", "Take FIVE (as in rest for FIVE minutes)","FIVE Pennies in a Nickel", "Quintuplets"Defn: the sum/total of four plus one; the sum of five individual units; totaling one more than four; the cardinal number between four and six; any group or collection of five people, items or things; something numbered five or having five units, as a playing card, 5 apples, face of a die, 5 inches, etc. |
FIVE
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The Number Six: 6"SIX Sides in a Hexagon", "SIX Faces of a Cube", "A Sextet", "Sextuplets", "SIX Feet in a Fathom", "SIX Players on a Volleyball Team", "Two Bits, Four Bits, SIX Bits, A DOLLAR", "SIX = One + Two + Three = One * Two * Three (the first 'perfect' number)", "SIX Sides and Values of a Die (on One of a Pair of Dice)", "SIX Cylinder Engine", "A Touchdown (in American Football)", "A Half Dozen"Defn: the sum/total of five plus one; the sum of six individual units; totaling one more than five; the cardinal number between five and seven; any group or collection of six people, items or things; something numbered six or having six units, as a playing card, 6 apples, face of a die, 6 inches, etc. |
SIX
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The Number Seven: 7"SEVEN Days in the Week", "Come on SEVEN", "Lucky SEVEN", "SEVEN Deadly Sins", "SEVEN Sides in a Heptagon", "The SEVEN Dwarfs", "SEVEN Up (7-Up)", "The Magnificent SEVEN", "SEVEN Wonders of the World", "Septublets"Defn: the sum/total of six plus one; the sum of six individual units; totaling one more than six; the cardinal number between six and eight; any group or collection of seven people, items or things; something numbered seven or having seven units, as a playing card, 7 apples, days in the week, 7 inches, etc. |
SEVEN
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The Number Eight: 8"EIGHT Sides in a Stop Sign ... an Octagon", "Behind the EIGHT Ball", "Pieces of EIGHT", "An Octet", "Octuplets", "EIGHT legs on a Spider / Tentacles on an Octopus", "EIGHT Bits in a Dollar", "EIGHT Pints in a Gallon", "EIGHT ='s Two Cubed (a cubic number)", "A V-EIGHT (a V-8 Engine)", "V-8 Juice", "EIGHT is Enough", "EIGHT Keys to an Octive"Defn: the sum/total of seven plus one; the sum of seven individual units; totaling one more than seven; the cardinal number between seven and nine; any group or collection of eight people, items or things; something numbered eight or having eight units, as a playing card, 8 apples, the 8-sides in a stop sign, 8 inches, etc. |
EIGHT
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The Number Nine: 9"A Cat has NINE Lives", "NINE Sides in A Nonagon", "NINE Players on a Baseball Team", "NINE Innings in a Baseball Game", "NINE Holes in a Golf Course (many have 18)", "On Cloud NINE"Defn: the sum/total of eight plus one; the sum of nine individual units; totaling one more than eight; the cardinal number between eight and ten; any group or collection of nine people, items or things; something numbered nine or having nine units, as a playing card, 9 apples, the nine innings in a baseball game, 9 inches, etc. |
NINE
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The Number Zero: 0"Nada", "Nothing", "Zip", "Zippo", "Zilch", "Goose Egg", "Naught", "Ground ZERO", "The Origin (on a Number Line or Coordinate System), "Dial ZERO (for the Operator)", "Null", "Empty / Void", "ZERO Gravity", "Absolute ZERO", "ZERO Growth"Defn: the symbol or numeral '0', naught, nothing, no units, the absence of quantity or units; the point, marked 0, from which positive or negative quantities and numbers are reckoned on a graduated scale, number line, ruler or coordinate system ... such as on a thermometer; the point intermediate between positive and negative quantities and numbers; a place holder used in the base 10 natural number system; the additive identity ... any number plus zero is the 'any number' (ex: 5 + 0 = 5). NOTE: Technically, zero is NOT a counting number since it indicates the absence of quantity. In counting, the first counting number ... the number indicating a single unit ... is one (1). |
ZERO
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The Number: 10"She/he/it is a TEN", "TEN Years in a Decade", "TEN Decades in a Century", "TEN Cents in a Dime", "TEN Dimes in a Dollar", "A TEN Dollar Bill", "TEN Sides in a Decagon", "TEN is the Base of our Number System", "The TEN Commandments"Defn: the sum/total of nine plus one; the sum of ten individual units; totaling one more than nine; the cardinal number between nine and eleven; any group or collection of ten people, items or things; something numbered ten or having ten units, as a playing card, 10 apples, the 10 fingers (considering both hands), 10 inches, etc. |
TEN
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