- keystone species
- Keystone State
- keystroke
- key up
- keyway
- Key West
- keyword
- keyword indexing
- keyword stuffing
- key worker
- kg
- kG
- KG
- kg.
- KGB
- kgf
- kg-m
- KGPS
- kh
- khā
- Khabarovsk
- Khabur
- Khachaturian
- Khadafy
- khaddar
- Khadijah
- Khafaje
- Khafre
- Khakass
- Khakass Autonomous Region
- Khakass Republic
- khaki
- khaki election
- Khalid
- Khalid ibn Abdul Aziz
- khalif
- khalifa
- Khalkha
- Khalkidhikí
- Khalkidíki
- Khalkís
- khalsa
- Khalsa
- Khama
- Khambhat
- Khamenei
- khamsin
- khan
- Khan
- khanate
- Khanbalik
- khanda
- khanga
- Khania
- Khaniá
- khanjar
- Khanka
- khansamah
- Khanty
- khapra beetle
- kharif
- Kharijite
- Kharkiv
- Kharkov
- Khartoum
- Khartoum North
- Khasi
- Khaskovo
- khat
- Khatami
- Khatanga
- khatri
- Khatti
- Khattusas
- khayal
- Khayyám
- khazi
- kheda
- khedive
- Khelat
- Kherson
- khidmatgar
- Khimki
- Khingan Mountains
- Khios
- Khíos
- Khirbet Qumran
- Khiva
- Khlyst
- Khmelnitsky
- Khmelnytskyi
- Khmer
- Khmer Republic
- Khmer Rouge
- Khnum
- Khodzhent
- Khoikhoi
- Khoisan
- khoja
- Khojent
- Khomeini
- Khomeini, Ayatollah Ruhollah
- Khond
- Khoper
- Khorana
- Khorasan wheat
- Khotan
- khoums
- Khouribga
- Khowar
- Khrushchev
- Khrushchev, Nikita
- Khrustalnyi
- Khudzhand
- Khufu
- Khujand
- khulan
- Khulna
- khurta
- khuskhus
- khus-khus
- khutbah
- Khutbah
- Khuzistan
- Khwarizmi
- Khyber knife
- Khyber Pass
- kHz
- ki
- Ki
- Ki.
- KIA
- kiaat
- kiabooca
- kia kaha
- Kiamichi
- kiang
- Kiangsi
- Kiangsu
- Kiaochow
- kia ora
- KIAS
- kiasu
- kiaugh
- kiawe
- kibble
- kibbutz
- kibbutznik
- kibe
- Kibei
- kibi-
- kibitka
- kibitz
- kibitzer
- kiblah
- kibosh
- kick
- kick about
- kick a habit
- Kickapoo
- kick around
- kick ass
- kick-ass
- kickback
- kick back
- kickball
- kickboard
- kick boxing
- kickdown
- kicker
- kick in
- kick in the pants, a
- kick it
- kickoff
- kick off
- kick on
- kick oneself
- kick out
- kick over the traces
- kick plate
- kick pleat
- kickshaw
- kicksorter
- kickstand
- kick-start
- kick starter
- kick the bucket
- kick the habit
- kick turn
- kickup
- kick up
- kick-up
- kick up a fuss
- kick up one's heels
- kick upstairs
- kickwheel
- kicky
- kid
- Kid
- kid around
- Kidd
- Kidd, Captain William
- kidder
- Kidderminster
- kiddie car
- kiddie porn
- kidding
- kiddle
- kiddo
- Kiddush
- kiddy
- kideo
- kid glove
- kid gloves
- Kidman
- kidnap
- Kidnapped
- kidney
- kidney bean
- kidney machine
- kidney ore
- kidney punch
- kidneys
- kidney-shaped
- kidney stone
- kidney stones
- kidney vetch
- kidney worm
- kidneywort
- kidology
- kid-on
- kidporn
- Kidron
- kids
- kids' stuff
- kidskin
- kidstakes
- kid stuff
- kid the pants off
- kidult
- kidvid
- kief
- Kieffer
- kiekie
- Kiel
- kielbasa
- Kiel Canal
- Kielce
- Kienholz
- Kiepura
- kier
- Kierkegaard
- Kierkegaard, Søren
- Kierkegaardian
- kieselguhr
- kieserite
- Kieślowski
- Kiev
- Kievan
- kif
- kiff
- Kigali
- Kigoma-Ujiji
- kike
- Kikládhes
- kikoi
- Kikongo
- kikumon
- Kikuyu
- Kikwit
- kil.
- Kilauea
- Kildare
- kilderkin
- kiley
- Kilgore
- kilij
- kilim
- Kilimanjaro
- Kilkenny
- Kilkenny cats
- kill
- Killarney
- killdee
- killdeer
- Killeen
- killer
- killer app
- killer application
- killer bars
- killer bee
- killer boat
- killer cell
- killer-diller
- killer T cell
- killer whale
- killick
- killickinnic
- Killiecrankie
- killifish
