Wordnet 3.0
NOUN (1)
1. 
 a native or inhabitant of Oman; 
ADJECTIVE (1)
1. 
 of or relating to Oman or its people; 
- Example: "Omani oil producers"- Example: "Omani ports"
The Collaborative International Dictionary of English v.0.48:
Omani \Omani\ prop. adj.
   Of or relating to Oman or its people; as, Omani oil
   producers; Omani ports.
   [WordNet 1.5]
The Collaborative International Dictionary of English v.0.48:
Omani \Omani\ prop. n.
   A native or inhabitant of Oman.
   [WordNet 1.5]
WordNet (r) 3.0 (2006):
Omani
    adj 1: of or relating to Oman or its people; "Omani oil
           producers"; "Omani ports"
    n 1: a native or inhabitant of Oman