thrum1Pronunciation: /θrʌm/Definition of thrum verb (thrums, thrumming, thrummed) [no object] make a continuous rhythmic humming sound:the boat’s huge engines thrummed in his ears [with object] strum (the strings of a musical instrument) in a rhythmic way: he thrums the strings [no object]:blind men thrum and hum in the soft air noun [usually in singular] a continuous rhythmic humming sound:the steady thrum of rain on the windowsOrigin: late 16th century (as a verb): imitativethrum in other Oxford dictionaries Definition of thrum in the US English dictionary
