We have no meanings for "be a dozen" in our records yet.
1 A good goal for a beginner would be a dozen or so.
2 From the noise out there there must be a dozen of them.
3 There had to be a dozen Peters and Pauls at the wedding.
4 We 're four to two, and soon we'll be a dozen to two.
5 There'd be a dozen soldiers around the checkpoint his truck was approaching.
6 There might be a dozen young ladies in gray in such a crowd.
7 There must be a dozen people in the room, I thought.
8 There will be a dozen cops at the party, all armed and dangerous.
9 There will be a dozen cameras for field hockey and 14 at handball.
10 There will be a dozen rifles at that door when they open it.
11 There could be a dozen reasons why Roger en't turned up.
12 There may be but two, or there may be a dozen .
13 There must be a dozen , or more, of them hidden away.
14 Consider, too, that aboard her there must be a dozen hiding-places.
15 There might be a dozen separate mobile terror beam generators scattered through the Park.
16 There must be a dozen of the band outside already.
Other examples for "be a dozen"
Grammar, pronunciation and more
This collocation consists of: Be a dozen through the time
Be a dozen across language varieties