RichThesaurus
be industrious/diligent/assiduous
vs
buckle down
be industrious/diligent/assiduous
buckle down
verb
To put forth the needed effort; to focus; become serious; apply oneself (e.g. to work or study).
How often have the words
be industrious/diligent/assiduous
and
buckle down
occurred in a corpus of books?
(source:
Google Ngram Viewer
)