enlist

enlist /ɪnˈlɪst/ verb
enlists; enlisted; enlisting
enlist
/ɪnˈlɪst/
verb
enlists; enlisted; enlisting
Britannica Dictionary definition of ENLIST
1 
[+ object]
a  : to get the support and help of (someone or something)
b  : to get (help, support, sympathy, etc.) from someone
2 
a  [+ object] : to sign up (a person) for duty in the army, navy, etc.
b  [no object] : to become a member of the army, navy, etc.
3 
[no object] : to become involved with a large group of people in a cause, movement, etc.

— enlistee

/ɪnˌlɪsˈtiː/ /ɪnˈlɪsti/ noun, plural enlistees [count]

— enlistment

/ɪnˈlɪstmənt/ noun, plural enlistments
[count]
[noncount]