Crossword Pattern Finder
Enter the grid mask from your crossword — known letters and ? wildcards for blank squares — to find every matching word in seconds.
How pattern matching works
A crossword grid gives you absolute positional information: each crossing entry places a specific letter at a specific position in the word you are solving. Pattern matching exploits this. Instead of searching all words and filtering by content, the engine indexes words by length, then by position-character pairs. Entering A?P?E translates to: "5-letter words with A at index 0, P at index 2, E at index 4." The intersection of those three index buckets is the result set — computed in milliseconds.
Both ? and _ are accepted as single-letter wildcards. You can mix them freely: A_P?E is identical to A?P?E. The pattern length (number of characters including wildcards) is automatically used as the word length filter, so you do not need to enter length separately when using patterns.
Optional stacking filters complement the pattern without replacing it. The starts-with field adds a confirmed prefix constraint; ends-with adds a suffix. These are useful when a perpendicular entry running through the first or last square of your answer slot has already been confirmed. Exclude-letters removes specific characters when crossing entries have proven they cannot appear anywhere in the word.
Common crossword patterns
Building effective patterns from crossing letters
The order in which you confirm crossing letters determines how quickly you can narrow a pattern. Letters near the ends of a word are most useful: a confirmed last letter combined with the word length reduces candidates to 5–10% of the length bucket. A confirmed first letter eliminates roughly another 96% of remaining candidates.
Strategically, fill the short across and down entries around a difficult entry first. Three-letter and four-letter words are easiest to confirm because there are few candidate answers and clues are usually direct definitions. Each confirmed short word places one or two letters into longer adjacent answers, turning their full-wildcard patterns into partially known ones.
For themed puzzles where long theme answers span most of the grid, pattern mode shines once even one perpendicular word has been confirmed. A theme answer of 12+ letters with 2–3 confirmed positions usually resolves uniquely. Enter those positions in the pattern and verify against the thematic clue with clue mode.
Pattern finder vs vocabulary explorers
The general Pattern Finder at unscrambletools.com is optimized for open-ended vocabulary search: all words starting with a prefix, all words containing a substring, all words of a certain length. It does not treat per-position masks as the primary input.
This Crossword Pattern Finder is focused on the specific use case of a grid mask — a fixed-length sequence where some positions are known and others are blank. The distinction matters: a vocabulary explorer might list all 5-letter words containing QU anywhere, while a pattern finder for ?Q??? requires Q specifically at position 2, which is a much tighter constraint.
For words with a specific ending (like all 7-letter words ending in -TION), the Words Ending in -tion page provides a curated browseable list — useful when you do not yet know the starting letters.
Crossword solver tools
Related word tools
Frequently asked questions
- What is a crossword pattern finder?
- A crossword pattern finder accepts a positional letter mask — a sequence of known letters and wildcard placeholders representing blank squares — and returns every word in the dictionary that matches that pattern exactly. It is the fastest way to go from "I have A in position 1, P in position 3, E in position 5" to a short list of candidates to verify against your clue.
- How do wildcard characters work in patterns?
- Both ? and _ represent a single unknown letter. Pattern A?P?E requires A at position 1, P at position 3, and E at position 5 — the characters at positions 2 and 4 can be any letter. The pattern length (5 in this case) is used as the exact word length filter. You can mix ? and _ freely: A_P?E and A?P_E are equivalent.
- How many known letters do I need for good results?
- Even one confirmed letter in a key position dramatically narrows results. A single known letter at position 1 in a 7-letter word eliminates roughly 96% of all 7-letter words. Two known letters typically return fewer than 50 matches. Three or more known letters usually resolve to 2–10 candidates that you can verify with the clue.
- Can I combine a pattern with additional filters?
- Yes. On top of the positional pattern, you can apply starts-with and ends-with constraints for words with a known prefix or suffix confirmed from other crossing entries. The contains filter adds a required substring not already captured in the positional mask. Exclude letters removes characters you know are wrong from crossing perpendicular entries.
- What is the difference between this and the general Pattern Finder?
- The general Pattern Finder at /pattern-finder is designed for vocabulary exploration — all five-letter words starting with RE, words containing QU, etc. The Crossword Pattern Finder uses the same engine but is focused specifically on per-position crossword masks with ? and _ wildcards that reflect how crossword grid squares work. The crossword context also adds clue mode as a complement to pattern mode.
- How do I handle long patterns with many unknowns?
- Long patterns with few known letters return many results. In this case, add length as an explicit filter if you have not already (the pattern length should match the grid slot), and apply starts-with or ends-with if any crossing entry confirms a prefix or suffix. Alternatively, switch to clue mode first to narrow candidates, then re-enter with the pattern once you have a hypothesis.
- What patterns are most common in crosswords?
- Short words (2–4 letters) appear in nearly every crossing position. Common 3-letter patterns like C?T (CAT/COT/CUT), R??E (RACE/RICE/ROSE), and ??S (various) recur constantly. For longer words, -TION endings (??TION = ACTION/NATION/OPTION), -ING endings, and -ED endings are extremely productive patterns because these suffixes are common in English. Entering the confirmed suffix as an ends-with filter before searching narrows the main pattern results significantly.
- What should I do if a pattern returns no results?
- First, double-check the pattern length — a wrong count of squares produces zero matches. Second, verify that each known letter is truly confirmed by a reliable crossing entry, not just a guess. Third, remove optional filters (starts-with, contains) one at a time to see which constraint is too strict. If no valid words exist for the pattern, one of the crossing entries may be wrong.