The Collaborative International Dictionary of English v.0.48:

Ani \A"ni\or Ano \A"no\, n. [Native name.] (Zool.)
   A black bird of tropical America, the West Indies and Florida
   (Crotophaga ani), allied to the cuckoos, having a
   compressed, bladelike bill and remarkable for communistic
   nesting.
   [1913 Webster] Anicut

WordNet (r) 3.0 (2006):

ani
    n 1: black tropical American cuckoo

V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

ANI
       Automatische Netzwerk Installation


V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

ANI
       Automatic Number Identification


The Free On-line Dictionary of Computing (30 December 2018):

Automatic Number Identification
ANI

    (ANI) A service that tells the recipient of a
   telephone call the telephone number of the person making the
   call.  This number can be passed to computer equipment to
   automatically retrieve associated information about the caller,
   i.e. account status, billing records, etc.

   See CTI.

   (1996-12-08)