to think you are very good or important
penser que vous êtes très bon ou important (penser ke vous êtes très bon ou important)
"He has a high opinion of himself after getting the award."
"Il a une haute opinion de lui-même après avoir reçu le prix." (Il **a une haute opinion de lui-même** après avoir reçu le prix.)
to see a small sign of improvement in a bad situation
to join someone’s online activity or conversation uninvited
to take action without being told what to do
something that seems promising at first but fails to deliver
to strengthen or support something
to talk too much to someone