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Today’s NYT Connections puzzle is a tough one. Hope you’ve brushed up on your vintage slang terms, because the blue category requires it. Read on for clues and today’s Connections answers.

The Times has a Connections Bot, like the one for Wordle. Go there after you play to receive a numeric score and to have the program analyze your answers. Players who are registered with the Times Games section can now nerd out by following their progress, including the number of puzzles completed, win rate, number of times they nabbed a perfect score and their win streak.

Read more: Hints, Tips and Strategies to Help You Win at NYT Connections Every Time

Hints for today’s Connections groups

Here are four hints for the groupings in today’s Connections puzzle, ranked from the easiest yellow group to the tough (and sometimes bizarre) purple group.

Yellow group hint: They’re part of you.

Green group hint: A lot!

Blue group hint: Retro slang terms for a certain job.

Purple group hint: Fire it downfield!

Answers for today’s Connections groups

Yellow group: Body coverings.

Green group: Masses, in idioms.

Blue group: Old-timey slang for law enforcement.

Purple group: Starting with synonyms for “throw.”

Read more: Wordle Cheat Sheet: Here Are the Most Popular Letters Used in English Words

What are today’s Connections answers?

The yellow words in today’s Connections

The theme is body coverings. The four answers are enamel, hair, nail and skin.

The green words in today’s Connections

The theme is masses, in idioms. The four answers are crowd, haystack, million and ocean.

The blue words in today’s Connections

The theme is old-timey slang for law enforcement. The four answers are copper, dick, flatfoot and gumshoe.

The purple words in today’s Connections

The theme is starting with synonyms for “throw.” The four answers are cast iron, Chuck E. Cheese, hurly burly and pitchfork.