leger vs journal

leger and journal both are nouns.

Word	Noun	Adjective	Verb	Adverb
leger	Yes	No	No	No
journal	Yes	No	No	No

As nouns, journal is a hyponym of leger; that is, journal is a word with a more specific, narrower meaning than leger:

Other hyponyms of leger include cost ledger, general ledger, subsidiary ledger, daybook.

leger (noun)	journal (noun)
a record in which commercial accounts are recorded	the part of the axle contained by a bearing
	a record book as a physical object
	a periodical dedicated to a particular subject
	a daily written record of (usually personal) experiences and observations
	a ledger in which transactions have been recorded as they occurred