How to copy/delete word under cursor in Vim

Assuming that the cursor is at the first character of the word simply do this in command mode:

     yw

y is for yank and w is for word.

Other ways of doing the same thing which are not as efficient:

     vey

the v starts visual select mode. e tells vim to move to end of word. y yanks or copies the word. to delete replace y with x.

if the cursor is somewhere in the middle of the word, add a b before the command as in:

     byw

or

     bvey