Now that the quarterback has recovered from his injury, this week the team will be functioning 'at full strength' again. [=the team will have all its players again]
We are negotiating from a 'position of strength'. [=from a strong position; from a position that gives us an advantage]
He didn't mean to knock you down; he just 'doesn't know his own strength'. [=doesn't realize how strong he really is]
(..) See it? Got anything? North-northeast, do you copy? It's coming right at us. Axis's gone vertical. Sucker's really gaining strength. Do you see it? No. We don't have a visual! Repeat! We don't have a visual! Help us out! Where is it? (..)1996 Twister