Stackable words

Atop one another

Stack these four four-letter words, atop one another, to form four columns of four-letter words read top to bottom: ALEE, IOTA, LOUR, and SKIN.

Stack these five four-letter words, atop one another, to form four columns of five-letter words read top to bottom: BARB, BLED, LUAU, RAGE, and URNS.

Stack these six four-letter words, atop one another, to form four columns of six-letter words read top to bottom: AHEM, CRUD, HERO, MAIN, SEMI, and STAG.

Stack these seven four-letter words, atop one another, to form four columns of seven-letter words read top to bottom: ACED, DEEP, GENT, ISLE, LAMA, OPEN, and SETS.

Stack these eight four-letter words, atop one another, to form four columns of eight-letter words read top to bottom: AXLE, BELL, FORE, LADS, LIES, ONCE, SASH, and TROD.