generally vs by and large

generally and by and large both are adverbs.

Word	Noun	Adjective	Verb	Adverb
generally	No	No	No	Yes
by and large	No	No	No	Yes

As adverbs, generally and by and large are synonyms defined as:

Other synonyms of generally include more often than not, mostly.

generally (adverb)	by and large (adverb)
without regard to specific details or exceptions	usually; as a rule
without distinction of one from others
usually; as a rule