Yes, SI is a valid word.SI is a two-letter word in our dictionary. It means ti, a note of the scale.
SI in word games
| Game | Base points | On a double word | On a triple word |
|---|---|---|---|
| Scrabble | 2 | 4 | 6 |
| Words With Friends | 2 | 4 | 6 |
Two-letter words like SI are how strong players score in tight spots. Laid parallel to another word, SI forms several short words at once, and each one scores.
Hooks for SI
SI takes 1 front hook and 9 back hooks.
Front hooks: PSI
Back hooks: SIB, SIC, SIM, SIN, SIP, SIR, SIS, SIT, SIX
Anagrams and words inside SI
Its letters also spell IS.
Longer words that start or end with SI
Our dictionary has 944 longer words that begin with SI and 26 that end with it, and the highest scoring of them is SIZZLING at 27 Scrabble points.
Starting with SI:
SIB, SIC, SIM, SIN, SIP, SIR, SIS, SIT, SIX, SIAL, SIBB, SIBS, SICE, SICK, SICS, SIDE, SIFT, SIGH, SIGN, SIKE, SILD, SILK, SILL, SILO and 920 more
Ending with SI:
PSI, NISI, BASSI, BYSSI, QUASI, TARSI, TORSI, ARIOSI, DALASI, THYRSI, ABOMASI, COLOSSI, KOLBASI, MAFIOSI, PACHISI, KIELBASI, KOLBASSI, MARCHESI, NARCISSI, PARCHESI, PARCHISI, SANNYASI, VIRTUOSI, METATARSI and 2 more
Frequently asked questions
Is SI a valid Scrabble word?
Yes. SI is in the ENABLE word list that this site uses, which closely matches the dictionary used for North American Scrabble. Collins, the list used in most other countries, contains nearly every ENABLE word as well. For tournament play, confirm against the official list for your event.
What does SI mean?
SI means ti, a note of the scale.
How many points is SI worth?
SI is worth 2 points in Scrabble and 2 points in Words With Friends before any premium squares. A double word square doubles that, and a triple word square triples it.
What words can you make by adding a letter to SI?
SI takes 1 front hook and 9 back hooks. Adding a letter to an existing word on the board, a hook, scores the whole new word.
Examples: PSI, SIB, SIC, SIM, SIN, SIP.