in_case
1. [ adverb ] if there happens to be need
Synonyms: just_in_case
Examples:

"in case of trouble call 911" "I have money, just in case"

2. [ pronoun ] preposition
Similar spelling:   incase
  incased
  incise
  incised
  incasement
  incus
  incisure
  incisive
  incest
  incisively
  insect
  incisor
  Inachis
  Insecta
  inky_cap
  incisura
  incision
  in_check
  insecure
  insectan
  incessant