when‧ev‧er S2 W3
every time that a particular thing happens:
Larry always blames me whenever anything goes wrong.
Whenever I hear that tune, it makes me think of you.
at any time:
Come and visit me whenever you want.
a policy of using recycled paper whenever possible
used as a reply to say that it does not matter what time something happens:
'I'll call you tomorrow or the day after.' ' Okay. Whenever.'