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замы́каться/замкну́ться
Imperfective - (ongoing or repeatedly)
Perfective замы́каться (completed or one-time)
Very rarely used word (top 20,000)
lock, be locked, be closed
Other Sources (auto generated)
замы́каться: 
Wiktionary
PONS
bab.la
Reverso
замкну́ться: WiktionaryPONSbab.laReverso
