- 1801 adaws
- 1802 adaxial
- 1803 adays
- 1804 add
- 1805 addable
- 1806 addax
- 1807 addebted
- 1808 added
- 1809 addedly
- 1810 addeem
- 1811 addeemed
- 1812 addeeming
- 1813 addeems
- 1814 addend
- 1815 addenda
- 1816 addends
- 1817 addendum
- 1818 adder
- 1819 adderley
- 1820 adders
- 1821 adderstone
- 1822 adderwort
- 1823 addible
- 1824 addict
- 1825 addicted
- 1826 addictedness
- 1827 addicting
- 1828 addiction
- 1829 addictive
- 1830 addicts
- 1831 adding
- 1832 addinsell
- 1833 addio
- 1834 addison
- 1835 additament
- 1836 addition
- 1837 additional
- 1838 additionally
- 1839 additions
- 1840 addititious
- 1841 additive
- 1842 additively
- 1843 additives
- 1844 additivities
- 1845 additivity
- 1846 additory
- 1847 addle
- 1848 addlebrained
- 1849 addled
- 1850 addleheaded
- 1851 addlement
- 1852 addlepated
- 1853 addles
- 1854 addling
- 1855 addoom
- 1856 addoomed
- 1857 addooming
- 1858 addooms
- 1859 addorsed
- 1860 address
- 1861 addressabilities
- 1862 addressability
- 1863 addressable
- 1864 addressed
- 1865 addressee
- 1866 addressees
- 1867 addresser
- 1868 addresses
- 1869 addressing
- 1870 addressor
- 1871 addrest
- 1872 adds
- 1873 adduce
- 1874 adduceable
- 1875 adduced
- 1876 adducent
- 1877 adducer
- 1878 adduces
- 1879 adducible
- 1880 adducing
- 1881 adduct
- 1882 adducted
- 1883 adducting
- 1884 adduction
- 1885 adductive
- 1886 adductor
- 1887 adducts
- 1888 adeem
- 1889 adeemed
- 1890 adeeming
- 1891 adeems
- 1892 adelaide
- 1893 adelantado
- 1894 adele
- 1895 adelphi
- 1896 ademption
- 1897 aden
- 1898 adenauer
- 1899 adenectomies
- 1900 adenectomy