Incase is another word for encase, which is defined as to cover something or someone completely.
An example of incase is putting shoes in a box with a lid on top.
transitive verb-·cased′, -·cas′ing
var. of encase
(third-person singular simple present incases, present participle incasing, simple past and past participle incased)
- Alternative spelling of encase.
From in- + case.