1 qualify, authorize, entitle, permit, allow, sanction, approve, empower, license, commission, entrust, depute, delegate, assign, charter, franchise:
An act was passed to enable them to build the railway.
2 capacitate, facilitate, expedite, help, aid, assist:
The grant enabled me to continue my studies.
3 permit, allow, approve, assent to, go along with, agree to, give the go-ahead or green light, Colloq OK or okay:
Her press pass enables her to get through police lines.