- in embankment
- in focus
- in print
- inactive
- inactive leaf
- inactive population
- inactivity
- inbound traffic
- inbuilt
- incandescent light
- incase
- incentive
- inch column
- incident sound
- incinerating installation
- incised ornament
- inclination angle
- incline
- inclined bar
- inclined bridge
- include
- Income distribution
- incompatible
- incomplete combustion
- incompressible medium
- incorrodible
- incurve
- indefinite value
- indented
- indented wire
- independent condenser
- independent failure
- independent footing
- independent measurements
- index
- indicating bolt
- indicating instrument
- indirect glare
- indirect light
- indirect welding
- individual benefit
- individual specimen
- indoor design
- induced siphonage
- induction system
- industrial building
- industrial ceramics
- industrial drafting
- industrial enterprise
- industrial gas
- industrial hygiene
- industrial lime
- industrial resources
- industrial silo
- industrial structure
- industrial tractor
- ineffective
- inelastic material
- inactive aggregate
- inactive door
- inactive time
- inaugurate
- inbond
- incandescence
- incandescent lamp
- incense
- incineration house
- inclinatorium
- inclined section
- inclined stirrup
- inclined winze
- incombustible dust
- incompressible bar
- incrustant
- indanthorone dye
- indent
- indented chisel
- independent crane
- independent disconnector
- independent of
- indeterminate structure
- indeterminateness
- index register
- indexing equipment
- Indian architecture
- indicating equipment
- indication sign
- indirect addressing
- individual base
- individual parking
- induced air
- induced voltage
- induct vent
- induction welding
- industrial accident
- industrial aesthetics
- industrial capital
- industrial sewer
- industrial society
- industrial traitor