コ

cook

cotton

coin

steadily

lightly rolling (of a small and round thing)

very hungry

air conditioner

with a friendly grin

personal computer

pachinko

mass communication

remote control

(electrical) outlet

contest

complex

disco

course

copy

coach

coat

code

cola (carbonated soft drink)

corner

record (e.g. LP)

alcohol

competition

concert

helicopter

raincoat

iced coffee

commercial (TV or radio advertisement)

computer

chocolate

connection

coma (of a comet)

core

col

pico-

ecological

cosmos

cox

cobra

comic books

committing (oneself to)

koala

coil

cocoa (beverage, cocoa solids)

Coordinating Committee for Export to Communist Area

cost

column (e.g. in newspaper)

Korea

cork

croquette

corona

colon (punctuation)

Congo

storyboard

competition

conte

component

party

combination

score (in a game)

Scotch

shovel

rococo

copy-and-paste

post (to a BBS)

communication

icon

off-the-record

graphic equalizer

cosplay (dressing up as a character from an anime, manga, video game, etc.)

cosmos

cockpit

cobalt (Co)

command

comical

comics

comment

colloid

Colorado

container (e.g. shipping)

contra

convoy

condor (incl. other New World vultures of family Cathartidae)

compass (for drawing circles, etc.)

convenience store

silicon (Si)

telecommunication

general contractor

nicotine

(laboratory) flask

boycott

communications within a small range

microcomputer

being a mama's boy

romantic comedy

mascot

Costa Rica

Colosseum (amphitheatre in Rome)

concord

concept

contact

con brio

capacitor

compost

combine

compact

semicolon

flamenco

economist

Copernicus (1473-1543)

columnist

constant

consensus

contrast

contrabass

promotional model (at a trade show, etc.)

Mekong delta

cosmopolitan

cohabitation

consultant

continental

condominium

convenience

conveyor belt

mitochondria

coronavirus

cogito, ergo sum

contact lens

San Francisco

commission

communiqué

body-conscious (look)

connection

comedian

collection (of art, stamps, etc.)

concerto

cognac

comedy

convention

consulting

Czechoslovakia

chocolate

Czech Republic

echo

co-op

apartment building

(telephone) call