TWICE

twice

(adverb) two times; “I called her twice”

doubly, double, twice

(adverb) to double the degree; “she was doubly rewarded”; “his eyes were double bright”

Source: WordNet® 3.1

Etymology

Adverb

twice (not comparable)

Two times.

(usually with "as", of a specified quality) Doubled in quantity, intensity, or degree.

Synonyms

• two times

Source: Wiktionary

Twice, adv. Etym: [OE. twies (where the s is the adverbial ending; see -wards), twie, AS. twiges, twiwa; akin to twi- (in comp.) two, G. zwie-, OHG. zwi-, Icel. tvi-, L. bi-, Gr. dvi-, and E. two. See Two.]

1. Two times; once and again. He twice essayed to cast his son in gold. Dryden.

2. Doubly; in twofold quantity or degree; as, twice the sum; he is twice as fortunate as his neighbor.

Note: Twice is used in the formation of compounds, mostly self- explaining; as, twice-horn, twice-conquered, twice-planted, twice- told, and the like.

Source: Webster’s Unabridged Dictionary 1913 Edition