"swab" in the noun sense
1. swab
implement consisting of a small piece of cotton that is used to apply medication or cleanse a wound or obtain a specimen of a secretion
2. swab, swob, mop
cleaning implement consisting of absorbent material fastened to a handle for cleaning floors
"swab" in the verb sense
1. swab, swob
wash with a swab or a mop
"swab the ship's decks"
2. dab, swab, swob
apply (usually a liquid) to a surface
"dab the wall with paint"
Source: WordNet® (An amazing lexical database of English)
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