What is the meaning of Antre?

Cavern; cave.

cave

hole, dive (disreputable establishment)

antrum

cave

den, lair

antrum

to enter

entrance, opening

alternative form of ant (“between, among”)

queue, a line of people, vehicles or other objects, in which one at the front end is dealt with first, the one behind is dealt with next, and so on, and which newcomers join at the opposite end (the back)

to queue,

to put oneself or itself at the end of a waiting line

to arrange themselves into a physical waiting queue

between

among

archaic form of entre

entrée

entrance

Source: wiktionary.org