MeanOF

buckle down

- verb (v)

Meaning: concentrate on

Synonyms: address apply oneself attend to bend dedicate oneself to devote oneself to exert oneself give give oneself over to keep close to keep one’s mind on launch into occupy oneself with pitch in set to throw turn
Antonyms: be lazy ignore relax

Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.