noun
plural -ers
[count] :a person who leads people to their seats in a theater, at a wedding, etc.
verb
always followed by an adverb or preposition -ers; -ered; -ering
[+ obj] :to lead (someone) to a place
usher in
[phrasal verb]
usher in (something) also usher (something) in
to happen at the beginning of (something, such as a period of activity) and usually to help cause it
to celebrate the beginning of (something)
US