Thrum is a term used to describe a continuous low-pitched sound, usually created by a musical instrument. The crossword solutions for this term are DRUM (4 letters), FRINGE (6 letters), HUM (3 letters), DRONE (5 letters), BUZZ (4 letters), and STRUM (5 letters). All of these words refer to a low-pitched sound that can be created by an instrument or voice. The DRUM is a percussion instrument that produces a low-pitched sound when struck with a stick or mallet. FRINGE is a term used to describe the decorative edges of a garment or fabric. HUM is a low-pitched sound made by a person or instrument. DRONE is a sustained low-pitched sound, often produced by an electronic instrument. BUZZ is a low-pitched humming sound, usually created by an insect. STRUM is a technique used on stringed instruments, where the strings are plucked or strummed with a pick or finger.