n.
Pronunciation: ' ə n-d ə r- ˌ t ā -ki ŋ , ˌ ə n-d ə r- ' ; 1b is ' ə n-d ə r- ˌ only
Function: noun
Date: 14th century
1 a : the act of one who undertakes or engages in a project or business b : the business of an undertaker
2 : something undertaken : ENTERPRISE
3 : PLEDGE , GUARANTEE