Entry Definition
s/he tries to gain h/ affection, "chases" h/
s/he has come back having gained weight (in the place where s/he spent the time away)
s/he gained weight, can gain weight
s/he gains weight, starts to gain weight
s/he, it accelerates, gains speed
(person on foot, in vehicle, in boat) s/he is gaining on h/, is catching up with h/
s/he has gained so much weight