KEYSTONE · Day 4

Monday, July 27, 2026 — three word bridges.

Every neighbouring pair has to make one word. SOME → DAY → LIGHT → HOUSE works because someday, daylight and lighthouse are all words. You are given the two ends; you supply the middle. More than one bridge is often legal, and any legal bridge counts.

Warm-up

LAY???????MAN

3 letters, then 4 letters.

Show an answer

OUT · DOOR

layout · outdoor · doorman — at least 6 different legal bridges exist for this one, so a different answer may well have counted too.

Main

FLASH??????????WIVES

5 letters, then 5 letters.

Show an answer

LIGHT · HOUSE

flashlight · lighthouse · housewives — other legal bridges may also count.

Challenge

UNDER????????TURNED

4 letters, then 4 letters.

Show an answer

TAKE · OVER

undertake · takeover · overturned — at least 2 different legal bridges exist for this one, so a different answer may well have counted too.

How day 4 worked out

Day 4 ran on Monday, July 27, 2026. Its three bridges were LAY to MAN, FLASH to WIVES and UNDER to TURNED. Between them they build nine compound words, all listed at the bottom of this page. Below is the answer to each bridge and what makes it fit.

Warm-up: LAY to MAN

The answer is OUT then DOOR, which gives layout, outdoor and doorman. The first gap is 3 letters, the second is 4.

This bridge is not unique. KEYSTONE accepts 6 different pairs here and every one of them scores: OVER · HEAD, OVER · WORK, OUT · HOUSE, OUT · LAW and OUT · POST work just as well as the pair above. Ends like these sit in the crowded part of the compound-word network, which is why several routes cross them.

Main: FLASH to WIVES

The answer is LIGHT then HOUSE, which gives flashlight, lighthouse and housewives. The first gap is 5 letters, the second is 5.

Only one pair in the KEYSTONE word bank joins FLASH to WIVES, so this bridge had a single accepted answer. The narrow end is usually the one to solve first.

Challenge: UNDER to TURNED

The answer is TAKE then OVER, which gives undertake, takeover and overturned. The first gap is 4 letters, the second is 4.

This bridge is not unique. KEYSTONE accepts 2 different pairs here and every one of them scores: PASS · OVER works just as well as the pair above. Ends like these sit in the crowded part of the compound-word network, which is why several routes cross them.

Every compound word in day 4

OUT, DOOR, LIGHT, HOUSE, TAKE and OVER have a page listing every compound built on them and the other chains you can run through them.

Every one of those nine compounds turns on a hinge word doing double duty. If you want to see the whole set KEYSTONE draws from, the reference list of 141 compound word hinges gives the words that attach in front of and behind each one.

Play day 4 yourself