AltF Lexicon holds 147,478 entries — 83,253 single words and 64,225 multi-word entries — carrying 207,235 senses between them. You can reach any of them by first letter, by length, by part of speech, by syllable count or by how common the word is. Every route below shows its counts before you click it.
The number in each tile is how many entries are filed under that letter. S carries 15,854; X carries 196. # holds the 329 entries beginning with a digit or a symbol.
Up to 6 single words per letter, ranked by commonness band and then by how many senses each carries. Phrases are held back here so the row is not filled with species names.
Letter counts from 2 to 15, single words only. Each list is capped at 2,000 entries and ordered by commonness, so the words you are most likely to want are on the first screen.
Narrower cuts — a length crossed with a first letter, words ending in a suffix, words containing a string — live on the word lists hub. Or start from a letter: words starting with A, words starting with B, words starting with C, words starting with D, words starting with E, words starting with F.
WordNet records four open classes and nothing else, so these four cover the corpus with no leftover bucket. The counts are of senses rather than of headwords, because a word that is both a noun and a verb belongs to both.
The links above open letter A filtered to that class; the filter carries across every letter. For the complete class as one list, see every adjective, every verb and the adverbs.
Counts from the CMU Pronouncing Dictionary where the word appears in it, and from the syllable rules otherwise. 23,668 words come in at three syllables, more than any other length.
Also by sound: one-syllable words, words stressed on the last syllable, words that are hard to pronounce.
Five bands, measured against a corpus of everyday English rather than assigned by an editor. Most of the dictionary sits in band one — that is what a dictionary is: mostly words you will never need, kept for the day you do.
Stated plainly, because a dictionary that will not say what it covers is asking you to guess.