Past Wordle answer Possible answer Accepted guess A tier opener

SIREN

Yes, SIREN was the Wordle answer on December 31, 2025 (Wordle #1656).

As an opener, it rules out about 96.4% of possible answers.

Meaning and pronunciation

Pronunciation: /ˈsaɪəɹən//ˈsaɪɹən/

Noun

One of a group of nymphs who lured mariners to their death on the rocks.

Noun

One who sings sweetly and charms.

Verb

To make a noise with, or as if with, a siren.

Verb

To drive with a siren on.

Alternative forms: sirene

Source: Wiktionary contributors · CC BY-SA 4.0. Corrections.

Wordle status

A word can be a playable guess without being a possible answer.

Playable guess

Yes

Included in the Wordle guess list used by our tools.

Possible answer

Yes

Included among the answers considered by the solver.

Past Wordle answer

Used once

Past Wordle answer: December 31, 2025 (#1656).

The possible-answer list is the solver's current list and may change when Wordle adds new answers.

Wordle Observatory

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About the project

Add an anonymous result and difficulty rating to the public, aggregate research dataset.

We send only this answer word for puzzle verification, the puzzle number, result, difficulty vote, Hard Mode flag, timezone and a random one-puzzle receipt token. The Observatory stores no answer word, grid, guesses, account, email, IP-derived ID or reusable player identifier. The puzzle-specific receipt prevents duplicate submissions and permits withdrawal; anyone with that token can withdraw, so keep browser-data exports private. See the privacy details.

How SIREN performs as a guess

SIREN is a possible answer, so it would solve about one game in 2,358 when every answer is treated as equally likely.

Played as an opener, it lands at least one colored tile in 89.4% of games, misses completely in 10.6%, and leaves about 86 possible answers on average.

In the previous complete v5 benchmark, it ranks #427 of 14,855 openers, averaging 3.58 guesses in games solved within six turns.

Try your feedback pattern

Tap the tiles to match your feedback, then see the ranked follow-up guesses.

All gray? Tap a tile to cycle gray → yellow → green.

First-turn measures

5.59 Entropy (bits)
86 Avg remaining
0.04% Exact match
96.4% Avg ruled out
In the top 1% for first-turn entropy
0.36 bits below the highest measured first-turn entropy (~5.95 bits)

As an opener: v5 benchmark

How SIREN performed in the previous complete opener benchmark, against its captured answer snapshot. These research figures are separate from today's solver recommendations. See the data page for the method.

3.58 Avg guesses
99.9% Win rate
0.71 Volatility
#427 v5 opener rank
In the complete v5 snapshot, SIREN ranks #427 of 14,855 openers by average guesses in games solved within six.
1 guess
1
2 guesses
87
3 guesses
1,007
4 guesses
1,074
5 guesses
168
6 guesses
14
Top-ranked in the current bounded policy screen: SLANT. The policy minimizes misses within six first, then average guesses among wins (3.45 for the leader). Compare the ranking measures

Composition

5/5 unique
2 vowels
Common:
EINRS

Feedback chances

Any hit (G/Y)
89%
Green tile
43%
All gray
11%

Example solver route

R O A T E
S I L E D
S I R E N

One example route used by the solver.

This solver benchmark reaches SIREN in 3 guesses.

Feedback distribution

131 possible patterns. Top outcomes:

251
193
129
112
97
95
88
83
63
62
57
54
54
53
52
51
48
46
30
28
27
25
23
23
23
22
19
18
18
17

Quick reference

Largest feedback groups after playing SIREN:

11% chance
Suggested:
MOULT
8% chance
Suggested:
DEALT
5% chance
Suggested:
ARDOR

Follow-ups for common patterns

Ranked follow-up guesses for the 10 most common feedback patterns.

10.6%
MOULT 5.56 bits
8.2%
DEALT 5.59 bits
5.5%
ARDOR 4.64 bits
4.7%
CRATE 4.84 bits
4.1%
OLATE 3.38 bits
4.0%
COUNT 4.67 bits
3.7%
SHALT 4.60 bits
3.5%
CLAIM 4.97 bits
2.7%
LASSO 4.58 bits
2.6%
FILTH 3.79 bits

Letter-value totals

Base letter-value totals for SIREN; these do not show whether either game accepts the word.

Scrabble

S1I1R1E1N1
Total: 5 points

Words With Friends

Total: 6 points

Scores shown are base values without double/triple letter or word bonuses.