two letters. Associated words: biliteral, biliteralism, diphthong, digraph, duoliteral.
two months. Associated word: bi-monthly.
two parties. Associated words: bipartisan, bipartisanship.
two parts. Associated words: bipartible, bipartite, bipartition, bipartient, bisect, bisection.
two poles. Associated words: bipolar, bipolarity.
two-sided, a. [double-faced], bilateral.
two weeks, fortnight. Associated words: bi-weekly, fortnightly.
two years. Associated words: biennial, biennially.
type, n. symbol, [token], representation; [model], exemplar, phototype, archetype. Antonyms: antitype, variant, [monstrosity].
typesetter, n. compositor; typograph (machine).