entry vs commencement

entry and commencement both are nouns.

Word	Noun	Adjective	Verb	Adverb
entry	Yes	No	No	No
commencement	Yes	No	No	No

As nouns, commencement is a hypernym of entry; that is, commencement is a word with a broader meaning than entry:

Other hypernyms of entry include beginning, start.

entry (noun)	commencement (noun)
the act of entering	the act of starting something
the act of beginning something new	an academic exercise in which diplomas are conferred
something that provides access (to get in or get out)	the time at which something is supposed to begin
something (manuscripts or architectural plans and models or estimates or works of art of all genres etc.) submitted for the judgment of others (as in a competition)
an item inserted in a written record
a written record of a commercial transaction