This search operates on an American English dictionary.
You must use Python 3 RE syntax. Only a partial match is required, but you can specify the start and end with '^' and '$' respectively. For example, you can limit to words which start with a lower-case letter by prepending (^[a-z].*) to your query.
The matching program is available here.
Results for: () A a AA AAA Aachen Aaliyah aardvark aardvarks Aaron AB abaci aback abacus abacuses abaft abalone abalones abandon abandoned abandoning abandonment abandons abase abased abasement abases abash abashed abashes abashing abasing abate abated abatement abates abating abattoir abattoirs abbé Abbas Abbasid abbess abbesses abbey abbeys abbot abbots Abbott abbr abbrev abbreviate abbreviated abbreviates abbreviating abbreviation abbreviations abbrevs abbés Abby ABC ABCs abdicate abdicated abdicates abdicating abdication abdications abdomen abdomens abdominal abduct abducted abductee abductees abducting abduction abductions abductor abductors abducts Abdul Abe abeam abed Abel Abelard Abelson Aberdeen Abernathy aberrant aberration aberrations abet abets abetted abetter abetters abetting abettor abettors abeyance abhor abhorred abhorrence abhorrent abhorring abhors abide abided abides abiding Abidjan Abigail Abilene abilities ability abject abjectly abjuration abjurations abjure abjured abjures abjuring ablative ablatives ablaze able abler ablest abloom ablution ablutions ably ABM ABMs abnegate abnegated abnegates abnegating abnegation Abner abnormal abnormalities abnormality abnormally aboard abode abodes abolish abolished abolishes abolishing abolition abolitionist abolitionists abominable abominably abominate abominated abominates abominating abomination abominations aboriginal aboriginals aborigine aborigines abort aborted aborting abortion abortionist abortionists abortions abortive aborts abound abounded abounding abounds about above aboveboard abracadabra abrade abraded abrades abrading Abraham Abram Abrams abrasion abrasions abrasive abrasively abrasiveness abrasives abreast abridge abridged >Too many results...