You're obviously getting punchy from lack of sleep, at this point. You just finished whinnying that "words mean things"... and then backpedal frantically, arms pinwheeling and eyes all a-bulge, the very second you're asked to define the meaning(s) of six simple, garden variety words: none of them more than two syllables, and all in the mother tongue.
THINK about that, for just a moment.
And then take another one, immediately after that. :)
Understanding that minor distinction isn't that difficult to grasp.