Easton's Bible Dictionary
Were of a great variety of forms, and were made of divers materials. Some were made of silver (Numbers 10:2), and were used only by the priests in announcing the approach of festivals and in giving signals of war. Some were also made of rams' horns (Joshua 6:8). They were blown at special festivals, and to herald the arrival of special seasons (Leviticus 23:24; 25:9; 1 Chronicles 15:24; 2 Chronicles 29:27; Psalm 81:3; 98:6).
Trumpets, Feast of
Was celebrated at the beginning of the month Tisri, the first month of the civil year. It received its name from the circumstances that the trumpets usually blown at the commencement of each month were on that occasion blown with unusual solemnity (Leviticus 23:23-25; Numbers 10:10; 29:1-6). It was one of the seven days of holy convocation. The special design of this feast, which is described in these verses, is not known.
Noah Webster's New International Dictionary of the English Language
(n. pl.) A plant (Sarracenia flava) with long, hollow leaves.