What is the answer to the NYT Crossword clue "Big letters in home security" from September 21, 2026?

Crossword clue

“Big letters in home security”

This clue appeared as 1-Down in the NYT Crossword on Monday, September 21, 2026. The answer has 3 letters.

Answer · 3 lettersFirst appearance

ADT

Letters3

Starts withA

Ends withT

Vowels1

Where this clue has appeared

NYT Crossword
Sep 21, 20263 letters→

About this clue

The clue “Big letters in home security” ran in the NYT Crossword on September 21, 2026 as 1-Down. Its answer is a 3-letter word that starts with A and ends with T.

See every answer from the puzzle on the NYT Crossword page for September 21, 2026, or learn how clues like this work in our guide to crossword clue types.

More clues from this puzzle

1AWhere Mongolia is4 letters 5AScaredy-cat4 letters 9ALeafs (through)5 letters 14AAlbum for which Kendrick Lamar won a Pulitzer Prize4 letters 15ABerry at a smoothie shop4 letters 16ACompany behind the game Pong5 letters 17AMentally pooped15 letters 20A1960s service site, informally3 letters

FAQ

What is the answer to the “Big letters in home security” clue?+

The answer is ADT (3 letters), from the NYT Crossword of September 21, 2026.

Where has this clue appeared?+

We have seen it 1 time in the NYT Crossword.

How do I find other NYT Crossword answers?+

Open the full list of answers for September 21, 2026, or browse every date on the NYT Crossword hub.