a large round container without a lid (= cover), used for washing clothes in, growing plants in, etc. 盆；桶 Oxford Collocations Dictionaryadjective- bath
- wash
- hot
- …
- lie in
- soak in
- climb in
- …
a small, wide plastic or paper container with a lid (= cover), used for food, etc. （塑料或纸的）饭盒，食品盒 
a tub of margarine 一盒人造黄油 an empty margarine tub 空的人造黄油盒
- (especially North American English, informal)
a bathtub (= a large, long container that you put water in and then get into to wash your whole body) 盆；桶 Oxford Collocations Dictionaryadjective- bath
- wash
- hot
- …
- lie in
- soak in
- climb in
- …
Word OriginMiddle English: probably of Low German or Dutch origin; compare with Middle Low German, Middle Dutch tubbe.