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Show the word gridAll 16 words — you figure out the groups
Show the themesCategory names only, no words revealed
One word per groupTheme name + one word per category
Full solutionAll words and explanations
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Word grid
All 16 words, sorted alphabetically. Group them into four categories of four.
EYE
GREMLIN
JACKET
JAW
LIMA
NADAL
NICE
OSAKA
PHOENIX
REFER
ROTATOR
SELES
SINNER
SQUATTER
TREMOR
ZIPPER
Themes
The four category names, easiest to hardest. No words revealed yet.
CITIESStraightforward
PALINDROMESModerate
HORROR MOVIES MINUS "S"Tricky
STARTING WITH SLANG FOR ZERODevious
One word per group
Theme name plus one word from each category.
CITIESStraightforward
WORLD CAPITALS AND MAJOR URBAN CENTERS+ 3 more…
PALINDROMESModerate
WORDS THAT READ THE SAME FORWARDS AND BACKWARDS+ 3 more…
HORROR MOVIES MINUS "S"Tricky
FAMOUS HORROR FILMS WITH THE FINAL 'S' REMOVED+ 3 more…
STARTING WITH SLANG FOR ZERODevious
WORDS THAT BEGIN WITH SLANG TERMS MEANING ZERO+ 3 more…
Full solution
CITIESStraightforward
LIMA,NICE,OSAKA,PHOENIX
LIMA (Peru), NICE (France), OSAKA (Japan), and PHOENIX (USA) are all well-known cities around the world.
PALINDROMESModerate
EYE,REFER,ROTATOR,SELES
EYE, REFER, ROTATOR, and SELES are all palindromes — they spell the same word whether read left-to-right or right-to-left.
HORROR MOVIES MINUS "S"Tricky
GREMLIN,JAW,SINNER,TREMOR
GREMLINS, JAWS, SINNERS, and TREMORS are horror movies; removing the trailing 'S' gives GREMLIN, JAW, SINNER, and TREMOR.
STARTING WITH SLANG FOR ZERODevious
JACKET,NADAL,SQUATTER,ZIPPER
Each word begins with slang for zero: ZIP (ZIPPER), NAD/NADA (NADAL), SQUAT (SQUATTER), and JACK (JACKET) are all informal words for nothing.