- 1901 kundalini
- 1902 kune
- 1903 kunkar
- 1904 kunkur
- 1905 kunzite
- 1906 kurbash
- 1907 kurbashed
- 1908 kurbashes
- 1909 kurbashing
- 1910 kurchatovium
- 1911 kurgan
- 1912 kuri
- 1913 kurrajong
- 1914 kurre
- 1915 kursaal
- 1916 kurta
- 1917 kurtoses
- 1918 kurtosis
- 1919 kuru
- 1920 kurvey
- 1921 kurveyed
- 1922 kurveying
- 1923 kurveyor
- 1924 kurveys
- 1925 kusso
- 1926 kutch
- 1927 kutcha
- 1928 kutches
- 1929 kuvasz
- 1930 kuvaszok
- 1931 kvas
- 1932 kvass
- 1933 kvell
- 1934 kvelled
- 1935 kvelling
- 1936 kvells
- 1937 kvetch
- 1938 kvetched
- 1939 kvetcher
- 1940 kvetches
- 1941 kvetchier
- 1942 kvetchiest
- 1943 kvetching
- 1944 kvetchy
- 1945 kwacha
- 1946 kwanza
- 1947 kwashiorkor
- 1948 kwela
- 1949 ky
- 1950 kyack
- 1951 kyak
- 1952 kyang
- 1953 kyanise
- 1954 kyanised
- 1955 kyanises
- 1956 kyanising
- 1957 kyanite
- 1958 kyanize
- 1959 kyanized
- 1960 kyanizes
- 1961 kyanizing
- 1962 kyar
- 1963 kyat
- 1964 kybosh
- 1965 kyboshed
- 1966 kyboshes
- 1967 kyboshing
- 1968 kydst
- 1969 kye
- 1970 kyle
- 1971 kylices
- 1972 kylie
- 1973 kylikes
- 1974 kylin
- 1975 kylix
- 1976 kylloses
- 1977 kyllosis
- 1978 kyloe
- 1979 kymogram
- 1980 kymograph
- 1981 kymographic
- 1982 kymographies
- 1983 kymographs
- 1984 kymography
- 1985 kynd
- 1986 kynde
- 1987 kynded
- 1988 kyndes
- 1989 kynding
- 1990 kynds
- 1991 kyne
- 1992 kyogen
- 1993 kyphoses
- 1994 kyphosis
- 1995 kyphotic
- 1996 kyrie
- 1997 kyrielle
- 1998 kyries
- 1999 kyte
- 2000 kythe