All 16 words, sorted alphabetically. Group them into four categories of four.
The four category names, easiest to hardest. No words revealed yet.
Theme name plus one word from each category.
WAREHOUSE, WEARABLE, WEREWOLF, and WHEREFORE all begin with the same 'wer/wear/where/ware' sound despite having different spellings — a set of homophones at the start
FISHBOWL, HOT SEAT, MICROSCOPE, and SPOTLIGHT are all metaphors used to describe being under public scrutiny or intense observation
ANIMAL, BEAKER, FOZZIE, and GONZO are all beloved Muppet characters from Jim Henson's franchise
COMPANY (has a boss as CEO), E STREET BAND (Bruce Springsteen is 'The Boss'), MAFIA (the boss is the crime lord), and VIDEO GAME (boss fights are a staple mechanic) — all feature a 'Boss'