Double Trouble: Mastering Double Letters in Fluxis and Word Games

If you’ve been playing Fluxis, The Atlantic’s clever new word game, you already know it’s part riddle, part relay race. Each daily puzzle challenges you to build a closed loop of words, where every new word starts with the last letter of the previous one — but there’s always a twist. The loop must follow a specific rule or word category, and these rotate each day.

Some categories, like “Nouns,” “Exactly 5 Letters,” or “No Repeated Letters,” are fairly straightforward. But others push your pattern recognition to the test. Three rules in particular tend to trip players up:

• Double Letters
• Letters in Alphabetical Order
• Alternating Vowel–Consonant

This guide zeroes in on Double Letters, one of those rules that seems easy to grasp but is surprisingly tricky to play quickly under pressure. That’s why we’ve compiled a handy reference of the five most common double-letter combos (SS, EE, LL, OO, and TT), along with example words spanning a range of starting letters. With this list in mind, you’ll be able to spot valid words faster, keep your loop flowing, and close that satisfying full circle.

And as a bonus, these double-letter words come in handy in Scrabble too, especially EE and OO, which are high-frequency tiles that can easily clutter your rack. Knowing a few good double-E or double-O words can help you drop excess vowels and score smart.

Let’s double up!

Double-Letter Word List: A to Z

Fluxis hint: To get ahead on the “Double Letters” rule, we’ve put together a list of simple, high-utility words featuring common double-letter pairs, organized by their starting letter. These everyday English words are easy to remember and perfect for quick thinking during a Fluxis puzzle.

This list is especially helpful when you're stuck needing a word that starts with a specific letter and includes a double letter somewhere inside. Scan it to train your brain or keep it handy as a reference while playing.

Here’s the A–Z breakdown:

Prefer a printable version? Download the PDF of this A–Z double-letter word list to keep it handy while you play Fluxis.

Double Trouble by Pair: Word Lists Grouped by Double Letters

Some players prefer pattern-based strategies over alphabetical ones, especially in Scrabble, where you might end up with too many Es or Os. Think of this section as a mini Scrabble word finder: we’ve grouped common words by their double-letter pair to help you spot and recall useful double O or double E words and use them to balance your rack.

Here’s the breakdown:

Final Word: Double Down on the Win

Now that you’ve got these double-letter words at your fingertips, you’re one step closer to mastering the Fluxis puzzles and clearing your Scrabble rack like a pro. Whether you're looping words or laying tiles, remembering a few go-to doubles like FLEE, CLASS, or ZOO can save you time, points, and mental gymnastics.

So next time the puzzle says Double Letters, don’t panic and double down.

Let the loop live on. 🔁

Our Atlantic Puzzle Companions

• Bracket City Hints
• The Atlantic Crossword Answers and Hints
• Fluxis Hints
• Stacks Hints