entry vs ushering in

entry and ushering in both are nouns.

Word	Noun	Adjective	Verb	Adverb
entry	Yes	No	No	No
ushering in	Yes	No	No	No

As nouns, ushering in is a hyponym of entry; that is, ushering in is a word with a more specific, narrower meaning than entry:

Other hyponyms of entry include induction, product introduction, naturalisation, naturalization.

entry (noun)	ushering in (noun)
the act of entering	the introduction of something new
the act of beginning something new
something that provides access (to get in or get out)
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