instrument flying regulations
instrument flight rules
International Federation of Red Cross and Red Crescent Societies
International Federation of Reproduction Rights Organizations
[if] /ɪf/ conjunction 1. in case that; granting or supposing that; on condition that: Sing if you want to. Stay indoors if it rains. I’ll go if you do. 2. even though: an enthusiastic if small audience. 3. whether: He asked if I knew Spanish. 4. (used to introduce an exclamatory phrase): If only Dad […]
1. Irish Free State.