What does "handlebar" mean?

The bar used to steer a bicycle, motorbike, or similar vehicle using the hands.

What is a synonym for "handlebar"?

Common synonyms include: bar, bar shaped, barlike, control bar, curled moustache, grips.

Pronounced //ˈhændəlbɑːɹ//.

/ˈhændəlbɑːɹ/ noun, slang

noun, slang ·Moderate ·College level

Noun

1
The bar used to steer a bicycle, motorbike, or similar vehicle using the hands. in-plural
"The bikelike steering handlebars are bent and welded from pipe or conduit."
2
the shaped bar used to steer a bicycle wordnet
3
Xanax. in-plural, slang
"Got a stick in the passenger in my car She ride on the dick with no handlebars Came a long way from poppin' them Xanax bars"

"He has a huge handlebar mustache."

From handle + bar.