Duration, term, era, tempo, gauge. Past, present, future, continuance.
Decision, desire, command, bequeath. Choice, determination, resolution, volition, resuluteness, forcefulness.
Convey, yield, institute, cause. Introduce, bear, accompany, deliver, carry, conduct, convoy.
Until, toward. As far as.
Whitish, buoyant, unsubstantial, agile, happy, frivolous, dizzy, blanched, pale, fair.
Well-to-do, well-versed, well-wisher, well read, welt, wench, wend, western, westward, wet, whack, whale, whammy, wharf, wheal, wheat, wheedle, wheel, wheel and deal, wheeze, whelp, when, when due, when you will.
Irretrievable, irreverence, irreverent, irreversible, irrevocable, irrigate, irritability, irritable, irritant, irritate, irritate a person, irritated, irritating, irritation, Ishmaelite, isolate, isolated, isolation, issuance, issue, issuing, it's a snap, it's easy, itch.
Concealed or secret, mysterious. Unseen, secret, covert, clandestine, unknown, out of sight.