חָצַר châtsar (H2690)

to trumpet, i.e. blow on that instrument

1) to sound a trumpet 1a) (Piel) players on clarions (participle) 1b) (Hiphil) sound with clarions (participle)

a primitive root; properly, to surround with a stockade, and thus separate from the open country; but used only in the reduplicated form חֲצֹצֵר; or (2 Chronicles 5:12) חֲצֹרֵר; as dem. from חֲצֹצְרָה (H2689);