The word "linchpin" in English means: A person or thing that is the most important part of a group or system., A pin passed through the end of an axle to keep a wheel in position..
The phonetic transcription of "linchpin" is /ˈlɪntʃpɪn/ in British English and /ˈlɪntʃpɪn/ in American English. Click the 🔊 button to hear both pronunciations.
Synonyms for "linchpin": cornerstone, hub, anchor, pivot, keystone.
Example usage of "linchpin": "He is the linchpin of our team, without him we can't win.". More examples on the page.