What does "crossbar" mean?

Any transverse bar or piece, such as a bar across a door, or the iron bar or stock which passes through the shank of an anchor.

What is a synonym for "crossbar"?

Common synonyms include: bar, bar, crisscross, cross, cut across, goal post.

Pronounced //ˈkɹ̠ɑs.bɑɹ//.

//ˈkɹ̠ɑs.bɑɹ// noun, verb

noun, verb ·Uncommon ·Advanced level

Noun

1
Any transverse bar or piece, such as a bar across a door, or the iron bar or stock which passes through the shank of an anchor.
2
long thin horizontal crosspiece between two vertical posts wordnet
3
The top of the goal structure.
"The effervescent Suarez then went close again as he worked space for a shot after a mazy run but could not keep his close-range shot below the crossbar."
4
game equipment consisting of a horizontal bar to be jumped or vaulted over wordnet
5
The top tube of a bicycle frame.