whether
/ˈwɛðɚ/
conjunction
Britannica Dictionary definition of WHETHER
1
a
:
if it is or was true that
b
:
if it is or was better
2
—
used to indicate choices or possibilities
-
Whether we succeed or fail, we must try.
-
It doesn't matter whether you pay by cash or check.
-
We're going whether or not you decide to come along. = Whether or not you decide to come along, we're going. [=we're going if you decide to come with us and we're going if you decide not to come with us]
-
I had to decide whether or not to respond to his letter.
-
The police are investigating whether (or not) the death was a homicide.
-
The game will be played whether it rains or not.