critter or crittur /kritˈər/ (dialect and informal; now esp US)

1. A creature
2. An animal

• introducible
• introducing
• introduction
• introductions
• introductive
• introductorily
• introductory
• introgression
• introgressions
• introit
• introits
• introitus
• introituses
• introject
• introjected
• introjecting
• introjection
• introjections
• introjects
• introld
• intromission
• intromissions
• intromissive
• intromit
• intromits