tubs is a form of:

Tub



noun
1.
(a round open flatbottomed wooden container, bathtub, a bath, a wooden container like a large covered wooden pail for holding lard and the like, the amount such a container holds, an unwieldy or rundown ship) ធុងឈើ, ធុងដែក (សម្រាប់យកធ្យូងចេញពីអណ្ដូង), bath tub អាងទឹក, សំពៅ (សម្រាប់ចុះងូត), tub of butter ធុងឈើ
ENGLISH MEANING
noun
1.
An open wooden vessel formed with staves, bottom, and hoops; a kind of short cask, half barrel, or firkin, usually with but one head, -- used for various purposes.
2.
The amount which a tub contains, as a measure of quantity; as, a tub of butter; a tub of camphor, which is about 1 cwt., etc.
3.
Any structure shaped like a tub: as, a certain old form of pulpit; a short, broad boat, etc., -- often used jocosely or opprobriously.
4.
A sweating in a tub; a tub fast.
5.
A small cask; as, a tub of gin.
6.
A box or bucket in which coal or ore is sent up a shaft; -- so called by miners.
verb
1.
(TRANSITIVE) To plant or set in a tub; as, to tub a plant.
2.
(INTRANSITIVE) To make use of a bathing tub; to lie or be in a bath; to bathe.