foil 3 
(foil)
(foil)n.
1. A fencing sword having a usually circular guard and a thin, flexible four-sided blade with a button on the tip to prevent injury.
2. often foils The art or sport of fencing with such a sword: a contest at foils.
[Origin unknown.]
- interval
- intervale
- intervalic
- intervallic
- intervene
- intervener
- intervenor
- intervention
- interventional
- interventionism
- interventionist
- intervertebral
- intervertebral disc
- intervertebral disk
- intervertebrally
- interview
- interviewable
- interviewee
- interviewer
- inter vivos
- intervocalic
- interweave
- intestacy
- intestate
- intestinal