Meaning of RECAP in English

re ‧ cap /ˈriːkæp, riːˈkæp/ BrE AmE verb ( past tense and past participle recapped , present participle recapping ) [intransitive and transitive]

[ Date: 1900-2000 ; Origin: recapitulate ]

to repeat the main points of something that has just been said:

Let me just recap what’s been discussed so far.

recap on

to recap on the previous lecture

—re‧cap /ˈriːkæp/ noun [countable]

Longman Dictionary of Contemporary English.      Longman - Словарь современного английского языка.