the "E" of E = mc2 7 Little Words

“the "E" of E = mc2” answer

The 7 Little Words answer for “the "E" of E = mc2” (most recently Friday, October 9, 2026, Puzzle 3) is:

ENERGY·6 letters

You can also reveal it one tile at a time above if you'd rather keep some of the challenge.

When else has “the "E" of E = mc2” appeared?

• October 9, 2026 (most recent) → ENERGY

Why the answer is ENERGY

It’s the quantity Einstein’s famous equation says you get by multiplying mass by the speed of light squared. ⚛️

How to build ENERGY from the tiles

In 7 Little Words you don't type the answer — you assemble it from the puzzle's shared tile bank, and every tile is used exactly once across all seven answers. Puzzle 3's tiles for October 9, 2026 are:

PER · MAN · ENT · BRU · SQU · ENE · SS · TUR · TLE · PRE · TRE · AT · FOR · KLI · FT · MA · DI · SON · ENE · RGY

ENERGY is built by combining the tiles ENE · RGY in order. Because those tiles come out of the shared bank, locking in ENERGY early also narrows what's left for the other six clues.

More clues from this puzzle

Stuck on another clue? Here are the rest of Puzzle 3's clues for October 9, 2026 — tap any for its answer and tile breakdown:

• wave once offered by Toni — 9 letters
• abruptness in manner — 11 letters
• Latin American black bean — 6 letters
• prepare to wash — 8 letters
• materials handling vehicle — 8 letters
• president during War of 1812 — 7 letters

Want all five puzzles in one place? The full day is on the October 9, 2026 answers page, and today's live answers are always one tap from the main 7 Little Words page.

About 7 Little Words

7 Little Words is a daily clue-and-tile puzzle from Blue Ox Technologies. Each board gives seven clues and a bank of two- and three-letter tiles; you spell every answer by combining tiles, using each tile exactly once. Five free puzzles publish every day, resetting at midnight Eastern Time. This was a Friday puzzle.