6-letter words with E as the 4th letter and I as the 5th letter

The shared core is ___EI_, with three letters before E and one after I. ALBEIT and DECEIT are easy anchors; CASEIN and LUTEIN reach into less everyday vocabulary. This is a narrow clue set, so use any known first or final letter to cut down candidates quickly; the same E-R pairing has 521 matches, making this I pattern unusually tight.

6-letter words with E fourth and I fifth at a glance

• 38 tournament-dictionary entries fit the fixed ___EI_ pattern.
• Collins includes 38; NWL2023 has 30, and ENABLE has 29.
• Only 4 qualify as common under the frequency measure.
• N closes 15 entries, far ahead of every other final letter.
• C and S tie as opening letters, with 5 words apiece.

The first and last letters are unevenly distributed

First letters are spread out, but C and S tie for the lead with five entries apiece; A, D, N and P each contribute three. That makes the pattern less useful as a first-letter clue than as a fixed interior pair. With C confirmed, compare CASEIN, CASEIC and COHEIR instead of assuming those words finish alike.

Endings are more lopsided: N closes 15 entries, while S is next with five and C appears four times. ALBEIT, DECEIT and UNVEIL show that the same EI pair still leads to sharply different endings. A final N narrows the field toward HEREIN, CASEIN and DYNEIN, though the less familiar words are easy to overlook.

Which dictionaries include these words?

Collins includes all 38 words, but NWL2023 has 30 and ENABLE has 29. A word accepted in one list can fail in another, so check the word list your app or club uses before banking on an obscure entry.

The contrast with the same E-at-fourth pattern paired with R at fifth is stark: that neighboring pattern has 521 entries, versus 38 here. The I version is a constraint-heavy search, not a broad word-family list. For 6-letter words with E fourth and I fifth, test the known ending as early as the known opening.