Lubricate
Lubricate (verb) /ˈluː.brɪ.keɪt/
to use a greasy or oily substance to make a machine operate more smoothly and easily – oil – loosen – grease, make something slippery, make something run smoothly, facilitate
Remember to lubricate the car engine regularly.
Noun: lubrication
Noun: lubricant
Noun: lubricator
Adjective: lubricative
