axle
noun
- central shaft for a rotating wheel or gear
Wiktionary
Pronunciation: /ˈæksəl/
noun
Etymology: From Middle English axil, in turn a combination of Old English eax and Old Norse ǫxull.
- The pin or spindle on which a wheel revolves, or which revolves with a wheel.
“rear axle”
“front axle”
- A transverse bar or shaft connecting the opposite wheels of a car or carriage; an axletree.
- An axis.
“the Sun’s axle”