A1
used between possibilities, or before the last in a list of possibilities
Dictionary examples:
Read or write? (0.0)
Sleep or play? (0.0)
Laugh or cry? (0.0)
Would you like tea or coffee? (7.6)
It will only take three or four days. (9.3)
Is that a boy or a girl? (16.0)
There were ten or twelve people in the room. (21.3)
It was either 1982 or 1983 - I can't remember which. (22.1)
You can have beer, wine or mineral water. (46.4)