fe·lic·i·ta·tion 
(fĭ-lĭs′ĭ-tāshən)
(fĭ-lĭs′ĭ-tāshən)n.
1. The act of expressing joy or acknowledgment, as for the achievement or good fortune of another.
2. often felicitations An expression of such joy or acknowledgment.
- insulin-like growth factor
- insulin lispro
- insulin pen
- insulin pump
- insulin resistance
- insulin shock
- insult
- insulter
- insultingly
- insuperability
- insuperable
- insuperably
- insupportable
- insupportably
- insuppressible
- insuppressibly
- insurability
- insurable
- insurance
- insure
- insured
- insurer
- insurgence
- insurgency
- insurgent