- Catherine I
- Catherine II
- Catherine of Alexandria
- Catherine of Aragon
- Catherine of Braganza
- Catherine of Siena
- Catherine Parr
- Catherine the Great
- Catherine wheel
- catheter
- catheterization
- catheterize
- cathetus
- cathexis
- Cathie
- Cathleen
- Catho
- cathode
- cathode dark space
- cathode glow
- cathode ray
- cathode rays
- cathode-ray tube
- cathodic
- cathodic protection
- cathodoluminescence
- cat hole
- catholic
- Catholic
- Catholic Apostolic Church
- catholicate
- Catholic Church
- Catholic Emancipation Act
- Catholic Epistles
- Catholicism
- catholicity
- Catholicity
- catholicize
- catholicon
- catholicos
- Catholicos
- catholicus
- cathouse
- Cathy
- Catilinarian
- Catiline
- cation
- cation exchange
- cationic detergent
- catkin
- catlike
- Catlin
- catling
- cat litter
- catmint
- catnap
- catnapper
- catnip
- Cato
- cat-o'-mountain
- cat-o'-nine-tails
- Catoctin Mountain Park
- Catoctin Mountains
- catolyte
- Cat on a Hot Tin Roof
- Catonsville
- catoptric
- catoptrics
- catouse
- cat rig
- CATS
- CAT scan
- CAT scanner
- cat-scratch disease
- cat-scratch fever
- Catseye
- Catskill Mountains
- catskinner
- catslide
- cat squirrel
- CAT standard
- catstick
- catstitch
- catsuit
- cat suit
- catsup
- Catt
- cat tackle
- cattail
- cat-tail
- cattalo
- Cattegat
- Cattell
- Catterick
- cattery
- cattish
- cattle
- cattle-cake
- cattle call
- cattle car
- cattle class
- cattle dog
- cattleduffer
- cattle egret
- cattle-grid
- cattle grub
- cattle guard
- cattleman
- cattle market
- cattle plague
- cattle prod
- cattle run
- cattleship
- cattle show
- cattle-stop
- cattle tick
- cattle truck
- cattleya
- Catton
- cat-train
- catty
- catty-cornered
- cattywampus
- Catullus
- CATV
- catwalk
- cat whisker
- catworm
- cat yawl
- Cauca
- Caucasia
- Caucasian
- Caucasian lily
- Caucasoid
- Caucasus
- caucho
- Cauchy
- Cauchy's inequality
- Cauchy integral formula
- Cauchy integral theorem
- Cauchy-Riemann equations
- Cauchy-Schwarz inequality
- Cauchy sequence
- caucus
- cauda
- caudad
- caudaite
- caudal
- caudal anesthesia
- caudal fin
- caudate
- caudex
- caudillismo
- caudillo
- Caudine Forks
- caudle
- caudle cup
- caught
- caught dead, wouldn't be
- caught flat-footed
- caught in the middle
- caught short
- caught with one's pants down, be
- caul
- cauld
- cauldrife
- cauldron
- caulescent
- Caulfield
- caulicle
- cauliflory
- cauliflower
- cauliflower cheese
- cauliflower ear
- cauliflowerette
- cauliflower fungus
- cauline
- caulis
- caulk
- caulker
- Caulonia
- Cauquenes
- cauri
- caus.
- causal
- causalgia
- causality
- causality paradox
- causa sine qua non
- causation
- causationism
- causative
- cause
- cause a commotion
- cause-and-effect
- cause célèbre
- cause list
- cause marketing
- cause raised eyebrows
- causerie
- causeuse
- causeway
- causey
- causist
- caustic
- caustic alcohol
- caustic curve
- caustic lime
- caustic potash
- caustic soda
- caustic surface
- cauterant
- cauterize
- cautery
- caution
- cautionary
- cautionary tale
- caution money
- cautious
- cautiously
- Cauvery
- CAV
- cav.
- cava
- Cava
- ça va
- cavachon
- Cavaco Silva
- cavaedium
- Cavafy
- cavalcade
- Cavalcanti
- cavalier
- Cavalier
- Cavalieri
- cavalier King Charles spaniel
- Cavalier poets
- cavalier servente
- cavalla
- Cavalleria Rusticana
- Cavallini
- cavalry
- cavalryman
- cavalry twill
- Cavan
- cavate
- cavatelli
- cavatina
- cave
- cave art
- caveat
- caveat emptor
- Caveat emptor
- caveator
- cave bear
- cave canem
- cave cricket
- cave dweller
- cavefish
- cave in
- cave-in
- cavel
- Cavell
- caveman
- cave man
- cavendish
- Cavendish
- Cavendish experiment
- caver
- cavern
- cavernicolous
- cavernous
- cavesson
- cavetto
- cave tubing
- caviar
- CAVIAR
- cavicorn
- cavie
- cavil
- Cavill
- caving
- cavitary
- cavitation
- Cavite
- cavity
- cavity block
- cavity resonator
- cavity wall
- cavolo nero
- cavo-relievo
- cavort
- cavorting
- Cavour
- cavy
- caw
- CAW
- Cawdrey
- Cawley
- Cawnpore
