to play a stringed instrument: to make music by plucking the strings of a lyre or harp
This is the Hebrew verb for making music by plucking the strings of an instrument such as the lyre or harp. It is not a general word for "play"; it always points to a hand drawing sound from strings.
Most of its appearances gather around a single scene: the young David, known as a skilled player, is brought to court to soothe King Saul by playing the lyre, and the evil mood lifts while he plays. The same verb describes the temple musicians in a psalm of praise, a wandering minstrel whose playing quiets the prophet Elisha until he can hear from God, and the summons to "play skillfully" in worship. Even Tyre, pictured as a forgotten woman, is told to play well so she will be remembered.
Two nearby words help fix its edge. To sing with the voice is a different word (שִׁיר), and to make music broadly, most often as praise offered to God, is another (זָמַר). This verb is narrower than both: it is the physical act of playing the strings, whether or not any singing goes with it.