Trumpets were at first horns perforated at the tip, used for
various purposes (Josh. 6:4,5).

Flasks or vessels were made of horn (1 Sam. 16:1, 13; 1 Kings

But the word is used also metaphorically to denote the
projecting corners of the altar of burnt offerings (Ex. 27:2)
and of incense (30:2). The horns of the altar of burnt offerings
were to be smeared with the blood of the slain bullock (29:12;
Lev. 4:7-18). The criminal, when his crime was accidental, found
an asylum by laying hold of the horns of the altar (1 Kings
1:50; 2:28).

The word also denotes the peak or summit of a hill (Isa. 5:1,
where the word "hill" is the rendering of the same Hebrew word).

This word is used metaphorically also for strength (Deut.
33:17) and honour (Job 16:15; Lam. 2:3). Horns are emblems of
power, dominion, glory, and fierceness, as they are the chief
means of attack and defence with the animals endowed with them
(Dan. 8:5, 9; 1 Sam. 2:1; 16:1, 13; 1 Kings 1:39; 22:11; Josh.
6:4, 5; Ps. 75:5, 10; 132:17; Luke 1:69, etc.). The expression
"horn of salvation," applied to Christ, means a salvation of
strength, or a strong Saviour (Luke 1:69). To have the horn
"exalted" denotes prosperity and triumph (Ps. 89:17, 24). To
"lift up" the horn is to act proudly (Zech. 1:21).

Horns are also the symbol of royal dignity and power (Jer.
48:25; Zech. 1:18; Dan. 8:24).