2

Smallest prime number

Two, the number after one and before three.

The smallest prime number and the only even prime.

Two suggests pairing, duality, or a small quantity: It takes two to tango, two sides of the coin, in two shakes.

To put two and two together is to draw an obvious conclusion.

Two cents is an unsolicited opinion.

numeral

two

Number after one

pairTwo matching things
coupleTwo linked together
dualHaving two parts

double · twice · binary · second · both · duo · twin · deuce · bi · dyad

symbolism

balance

Steadiness or amount owed

yin-yangChinese duality symbol
dualityTwofold nature
oppositionActive resistance or dissent

polarity · counterpart · complement · dichotomy · mirror · reflection · symmetry · partnership · union · marriage

rank

second

Unit smaller than minute

runner-upCompetition's silver finisher
silverLustrous white precious metal
viceBad habit or deputy

deputy · subordinate · alternate · backup · reserve · understudy · sequel · follow-up · secondary · latter

slang

bathroom

Room for hygiene

restroomFacility with toilets
pottyChild-sized toilet
toiletWaste disposal fixture

defecate · bowel · movement · poop · latrine · john · loo · urge · necessity

Categories

numbersone, two, four, three, 0
elevator buttons1, 3, 4, 5, 6
numerals0, 1, 3, 4, 5
phone buttons1, 3, 4, 5, 6
atomic numbers1, 3, 4, 5, 6
Keyboard Charactersa, d, e, h, q

Opposites

quantity/singularity

21

Smallest positive integer

one · singular · single · unity · solo

numerical magnitude

Unlimited extent or quantity

infinite · zero · 0 · million · billion

mathematical properties

21

Smallest positive integer

3 · odd numbers · negative two

Phrases

number 2 pencilsMedium-soft graphite sticks
World War 2Mid-century global conflict
2% milkLow-fat dairy beverage
number 2Rank after first
Toy Story 2
2 for 1Paired pricing deal

Familiarity: Top 5,000
Profile: Known to kids · Used worldwide · Timeless · Concrete · Everyday, not technical · Rated G