Boyd’s Bible Dictionary:
(pipe). A wind instrument with a flaring mouth, made of horn or metal and differing but little in form and use from the cornet (Ex. 19:16). [CORNET.]
Concise Bible Dictionary:
These were made of rams’ horns and perhaps of the horns of other animals. They were used on joyful occasions, and at the wars. There were two trumpets made of silver which the priests used, and instructions were given as to blowing different sounds for calling the princes together, or for summoning all the congregation, or as an alarm for war (Num. 10:1-10: Compare 1 Cor. 14:8). At the dedication of the temple Solomon had a hundred and twenty priests sounding with trumpets (2 Chron. 5:12).
The use of trumpets set forth the public proclamation of God’s rights in His people, whether in their direction or in their relationship with Him.
Shofar
At the giving of the law there was a loud voice of the trumpet proceeding from the mount, exceeding loud; so that all the people trembled (Ex. 19:16,19; Heb. 12:19).
When the Lord Jesus comes to fetch His saints it will be with the voice of the archangel and with the trump of God (1 Thess. 4:16). The “last trump” will sound at the resurrection of the saints (1 Cor. 15:52). In the Roman army, when it was about to start, the trumpet sounded three times: at the first trumpet they pulled down their tents: at the second they put themselves in order; and when the last sounded they started.
In the judgments that are to fall upon the earth, as foretold in the Revelation, the Seven Seals introduce the Seven Trumpets: the first four fall upon the Roman earth, and refer to the state and circumstances of men; the latter three trumpets refer to the East, and fall upon the persons themselves. The Trumpets come in between the Seals and the Vials (Rev. 8:2—Rev. 9:14).
Strong’s Dictionary of Hebrew Words:
Meaning:
a primitive root; properly, to surround with a stockade, and thus separate from the open country; but used only in the reduplicated form chatsotser {khast-o-tsare'}; or (2 Chronicles 5:12) chatsorer {khats-o-rare'}; as dem. from 2689; to trumpet, i.e. blow on that instrument
KJV Usage:
blow, sound, trumpeter