KEYSTONE · Day 43

Friday, September 4, 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

OVER→????→???→PUT

4 letters, then 3 letters.

Show an answer

LOOK · OUT

overlook · lookout · output — at least 6 different legal bridges exist for this one, so a different answer may well have counted too.

Main

STEP→??????→????→MARK

6 letters, then 4 letters.

Show an answer

FATHER · LAND

stepfather · fatherland · landmark — at least 2 different legal bridges exist for this one, so a different answer may well have counted too.

Challenge

WHOLE→????→???→BREAK

4 letters, then 3 letters.

Show an answer

SOME · DAY

wholesome · someday · daybreak — other legal bridges may also count.

How day 43 worked out

Day 43 ran on Friday, September 4, 2026. Its three bridges were OVER to PUT, STEP to MARK and WHOLE to BREAK. 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: OVER to PUT

The answer is LOOK then OUT, which gives overlook, lookout and output. The first gap is 4 letters, the second is 3.

This bridge is not unique. KEYSTONE accepts 6 different pairs here and every one of them scores: TIME · OUT, WORK · OUT, TAKE · OUT, LAY · OUT and TURN · OUT 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: STEP to MARK

The answer is FATHER then LAND, which gives stepfather, fatherland and landmark. The first gap is 6 letters, the second is 4.

This bridge is not unique. KEYSTONE accepts 2 different pairs here and every one of them scores: MOTHER · LAND 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.

Challenge: WHOLE to BREAK

The answer is SOME then DAY, which gives wholesome, someday and daybreak. The first gap is 4 letters, the second is 3.

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

Every compound word in day 43

OUT, FATHER, LAND, SOME and DAY 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 43 yourself