Definitions
1.Nounhole, hollow, cavity
2.Nounseptic tank
3.Nounoceanic trench
4.Nounfossa (Cryptoprocta ferox)
5.Verbinflection of fossar:
third-person singular present indicative
second-person singular imperative
6.Verbthird-person singular present indicative
7.Verbsecond-person singular imperative