The short, thick first digit of the human hand, set lower and apart from the other four and opposable to them.
Shared component: thumb · body part
OpenEtymologyWORD FAMILY
thumb
body part
Related forms: thumb · 3 words in this dictionary
Related words
Shared components, not spelling prefixesThe nail on the thumb.
thumb+nail
Shared component: thumb · body part
Being approximately the size of a human thumb.
thumb+size
Shared component: thumb · body part