Synonyms of 'lubricate'
oilDictionary, grease, smear
If you oil something, you put oil onto or into it, for example to make it work smoothly or to protect it.
Mineral oils are used to lubricate the machinery.
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Thesaurus for lubricate from the Collins English Thesaurus
If you lubricate something such as a part of a machine, you put a substance such as oil on it so that it moves smoothly.