WHEN


Meaning of WHEN in English

I. ˈhwen, ˈwen, (h)wən adverb

Etymology: Middle English, from Old English hwanne, hwenne; akin to Old High German hwanne when, Old English hwā who — more at who

Date: before 12th century

1. : at what time

when will you return

2.

a. : at or during which time

b. : and then

3. : at a former and usually less prosperous time

brag fondly of having known him when — Vance Packard

II. conjunction

Etymology: Middle English, from Old English hwanne, hwenne, from hwanne, hwenne, adverb

Date: before 12th century

1.

a. : at or during the time that : while

went fishing when he was a boy

b. : just at the moment that

stop writing when the bell rings

c. : at any or every time that

when he listens to music, he falls asleep

2. : in the event that : if

a contestant is disqualified when he disobeys the rules

3.

a. : considering that

why use water at all when you can drown in it — Stuart Chase

b. : in spite of the fact that : although

quit politics when I might have had a great career in it

4. : the time or occasion at or in which

tomorrow is when we must decide

humor is when you laugh — Earl Rovit

III. ˈhwen, ˈwen pronoun

Date: 14th century

: what or which time

life-long homes for those…who have lived here since when — Kim Waller

IV. noun

Date: 1616

: the time in which something is done or comes about

troubled his head very little about the hows and when s of life — Laurence Sterne

Merriam-Webster's Collegiate English vocabulary.      Энциклопедический словарь английского языка Merriam Webster.