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: ASPS, CROC, GALA, and YIPS.

Stack these five four-letter words, atop one another, to form four columns of five-letter words read top to bottom: AERO, BAIL, CRAB, KITE, and SEED.

Stack these six four-letter words, atop one another, to form four columns of six-letter words read top to bottom: BUSS, MINE, OMIT, ORAL, SASS, and SETA.

Stack these seven four-letter words, atop one another, to form four columns of seven-letter words read top to bottom: ADDS, ECRU, HEAD, IDLE, SCAN, VEER, and YAKS.

Stack these eight four-letter words, atop one another, to form four columns of eight-letter words read top to bottom: AVER, DEBS, DIME, MAGE, OGRE, ORAL, STEP, and YENS.