Clue: Horizontal, on a puzzle: abbr.

Answer: ACR

Length: 3

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Similar Clues:

• Horizontally: Abbr. (ACR with 3 letters)
• Horizontal: Abbr. (ACR with 3 letters)
• Puzzlers' direction: Abbr. (ACR with 3 letters)
• Like exactly half the entries in this puzzle (abbr.) (ACR with 3 letters)
• Horizontal, like this answer: abbr. (ACR with 3 letters)
• Puzzle type: abbr. (ANAG with 4 letters)
• Like some online forum postings: Abbr. (ANON with 4 letters)
• One of 78 in this puzzle: Abbr. (ANS with 3 letters)
• Ocean "crossing" this puzzle's four longest answers (abbr.) (ATL with 3 letters)
• Real estate units involved in this puzzle's theme: Abbr. (BRS with 3 letters)