Prefixes: Lessons 1-3

Front

oct

Back

Prefix meaning 'eight'. Example: octagon (a shape with eight sides).

Front

anti

Back

Prefix meaning 'against' or 'opposite'. Example: antibiotic (a substance that works against bacteria).

Front

dec(i), dec(a)

Back

Prefix meaning 'ten'. Example: decade (a period of ten years).

Front

intro/intra

Back

Prefix meaning 'in', 'into', 'inward', or 'within'. Example: introduction (the act of bringing something in).

Front

fid

Back

Prefix meaning 'faith'. Example: confidence (having faith in oneself).

Front

non

Back

Prefix meaning 'not' or 'without'. Example: nonverbal (not involving words).

Front

ambi

Back

Prefix meaning 'both' or 'on both sides'. Example: ambidextrous (able to use both hands equally well).

Front

sept, hept(a)

Back

Prefix meaning 'seven'. Example: heptagon (a shape with seven sides).

Front

centi

Back

Prefix meaning 'hundred'. Example: centimeter (one hundredth of a meter).

Front

kilo

Back

Prefix meaning 'thousand'. Example: kilometer (one thousand meters).