to add (one thing to another); to add (a few more words, an explanation, etc.)
to harm; to cause harm to
to add (one thing to another); to add (a few more words, an explanation, etc.)
to perform some process; to apply some treatment; to revise; to correct
to take into consideration; to use one's discretion
to add to one's circle of friends (or colleagues, etc.); to take in; to accept
to improve upon; to make improvements to; to refine
to add (one thing to another); to add (a few more words, an explanation, etc.)
to apply pressure to; to press
to take the law into one's own hands
to add a new page (e.g. to the annals of history)