From Longman Dictionary of Contemporary Englishbroombroom /bruːm, brʊm/ ●●○ noun 1 
[countable]DHC a large brush with a long handle, used for sweeping floors2 [uncountable]HBP a large bush with small yellow flowers
[countable]DHC a large brush with a long handle, used for sweeping floors2 [uncountable]HBP a large bush with small yellow flowersExamples from the Corpus
broom• There's pots to wash and a broom under the counter.• He would have reached for a broom or a piece of kindling.• Banister installs him in a broom closet upstairs.• Like the rituals of harvest and planting in pastoral societies, the desert broom tufts are a sign.• We compared the sizes of the gardeners' brooms with our own.• I mean, that bit in the broom cupboard - oh, you didn't see it, did you?• It's the same place Boris Becker got his mistress pregnant in the broom cupboard.• I looked back and saw them coming after me with the broom.Origin broom 1. Old English brom “broom plant”; 2. because broom branches were used for making brushes 