“Rocket propellent first used”
The verified answer to the Newsday Crossword clue “Rocket propellent first used”, with letter-by-letter analysis and the full puzzle context for the Sunday, January 4, 2026 puzzle.
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The Answer
The answer to “Rocket propellent first used” is LIQUIDFUEL
Letter analysis: the 10-letter answer
Vowels, consonants, and crossword construction notesThe clue “Rocket propellent first used” appeared in the Newsday Crossword on Sunday, January 4, 2026 as a across entry. The verified answer is LIQUIDFUEL — a 10-letter word that begins with L and ends with L.
This answer contains 5 vowels and 5 consonants. The Newsday Crossword is published daily by Newsday on Long Island and edited by Stan Newman, whose Saturday Stumper is widely considered one of the toughest mainstream crosswords in print.
Other clues with the answer LIQUIDFUEL
LIQUIDFUEL has been used as the answer for these Newsday Crossword cluesMore clues from the January 4, 2026 puzzle
Sunday Newsday CrosswordFrequently asked questions about “Rocket propellent first used”
What is the answer to “Rocket propellent first used” in the Newsday Crossword?
The verified answer is LIQUIDFUEL — a 10-letter word that appeared as a across entry on Sunday, January 4, 2026.
How many letters is the answer to “Rocket propellent first used”?
The answer LIQUIDFUEL contains 10 letters.
Was “Rocket propellent first used” an across or down clue?
This clue ran as a Across entry.
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No. This is an independent fan reference site — we are not affiliated with Newsday. The Newsday Crossword is a trademark of its respective owner. We solve and verify each Newsday Crossword puzzle manually before publishing the answer key.