I. ush ‧ er 1 /ˈʌʃə $ -ər/ BrE AmE noun [countable]
[ Date: 1300-1400 ; Language: Old French ; Origin: ussier , from Vulgar Latin ustiarius 'door-guard' , from Latin ostium 'door' ]
1 . someone who shows people to their seats at a theatre, cinema, wedding etc
2 . British English someone who works in a law court whose job is to guide people in and out of the courtrooms
II. usher 2 BrE AmE verb [transitive always + adverb/preposition]
to help someone to get from one place to another, especially by showing them the way
usher somebody into/to something
He ushered her into the room.
usher somebody in
She stood back and ushered him in.
usher in ↔ something phrasal verb
to cause something new to start, or to be at the start of something new:
The discovery of oil ushered in an era of employment and prosperity.