ボーイ

ぼーい
noun
bellboy; waiter
archaicoccupation
1. bellboy; porter
A hotel employee who carries luggage and assists guests.
I had the bellboy carry my luggage.
When I arrived at the hotel, the bellboy carried my luggage to my room.
2. waiter; server
A male server at a restaurant or bar.
ボーイ()
To call the waiter.
I ordered a drink from the waiter at the bar.
In the old days, waiters at restaurants served customers wearing white gloves.
3. boy (in compounds)
Used in loanword compounds meaning 'boy'.
カウボーイ映画(えいが)
a cowboy movie
I went out wearing a cowboy hat.
When I was a child, I was in the Boy Scouts.

ボーイ has several uses in Japanese.

Service industry usage

Compounds

Note: For "waiter," modern Japanese often uses ウェイター or simply スタッフ. ボーイ as "waiter" sounds somewhat old-fashioned.