Word.ws English Dictionary

5-Letter Words Starting with SI

There are 55 five-letter words that start with SI on Word.ws, from sibyl to sizer. The most common are since, sight, simon, silly and sixth.

Meanings from Wiktionary. Not an official Scrabble, Words With Friends or Wordle word list.

All 55 five-letter words that start with SI

SIB

  • sibyl10n. A pagan female oracle or prophetess, especially the Cumaean sibyl.

SIC

  • sicca9n. A great seal.
  • sicko11n. A physically ill person.
  • sicky14adj. Covered in vomit.
  • sicle7n. A shekel.

SID

  • sided7adj. Having the specified type of side or sides or number of sides.
  • sider6n. One who takes a side.
  • sidey9adj. Exhibiting side, or unjustified self-importance; arrogant.
  • sidhe9n. A fairy in Gaelic folklore (a member of the Sidhe).
  • sidle6v. To (cause something to) move sideways.

SIE

  • siege6n. A prolonged military assault or a blockade of a city or fortress with...
  • sieve8n. A device with a mesh, grate, or otherwise perforated bottom to...

SIG

  • sight9n. The sense or faculty by which objects are perceived through the agency...
  • sigil6n. A seal, signature or signet.
  • sigma8n. The eighteenth letter of the Classical and Modern Greek alphabets (Σ...

SIL

  • silat5n. A type of martial art originating from the Malay Archipelago.
  • silex12n. A finely ground relatively pure form of silicas used as a paint filler...
  • silky12adj. Similar in appearance or texture (especially in softness and...
  • silly8adj. Laughable or amusing through foolishness or a foolish appearance.
  • silty8adj. Having a noticeable amount of silt.
  • silva8n. The forest trees of a particular area.
  • silyl8n. The radical SiH₃ derived from silane.

SIM

  • simar7n. A type of ecclesiastical vestment, similar to a cassock.
  • simit7n. A ring-shaped bread roll covered with sesame seeds.
  • simon7n. Sixpence coin.
  • simpy12adj. Characteristic of a simp; foolish.
  • simul7n. An exhibition in which one (typically much stronger) player plays...

SIN

  • sinal5adj. Pertaining to the sinuses.
  • since7adv. From a specified time in the past.
  • sines5n. Pair of sixes of dice.
  • sinew8n. A cord or tendon of the body.
  • singe6v. To burn slightly.
  • sinus5n. A pouch or cavity in a bone or other tissue, especially one in the...

SIO

  • siong6adj. Very tough, challenging.

SIP

  • sippy12n. A little sip; less than a serving of some particular drink.

SIR

  • siree5n. Sir.
  • siren5n. One of a group of nymphs who lured mariners to their death on the rocks.
  • siris5n. Any tree of the genus Albizia.

SIS

  • sisal5n. A Central American plant, Agave sisalana, cultivated for its...
  • sisig6n. A pork dish from the Philippines.
  • sissy8n. A male crossdresser who adopts feminine behaviours.

SIT

  • sitar5n. A Hindustani/Indian classical stringed instrument, typically having a...
  • sitch10n. A brook; an occasional small waterway: a ditch, a gutter or drain; a...
  • sithe8v. To sigh.
  • sitio5n. A subdivision of a barangay, typically rural.
  • situs5n. The position, especially the usual, normal position, of a body part or...

SIV

SIX

  • sixer12n. A shot in which the ball passes over the boundary without touching the...
  • sixes12n. A pair of sixes.
  • sixte12n. The sixth defensive position, with the sword hand held at chest height...
  • sixth15adj. The ordinal form of the number six.
  • sixty15n. A commercial lasting 60 seconds.

SIZ

  • sizar14n. An undergraduate at Trinity College, Dublin and the University of...
  • sized15adj. Having a certain size. Usually used in combination with an adverb or a...
  • sizer14n. An instrument or contrivance to size articles, or to determine their...
23 rare five-letter words that start with SI

Questions about these words

How many five-letter words that start with SI are there?
Word.ws lists 55 five-letter words that start with SI, plus 23 rare ones.
What are common five-letter words that start with SI?
since, sight, simon, silly, sixth, sized, sided and siege.
Which of the five-letter words that start with SI has the highest letter score?
sized scores 15 points with the standard letter tile values.

Related word lists

Source and license

Word lists and meanings adapted from the Wiktionary entry of each word. Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws left out names, abbreviations, misspellings and offensive words, and ordered the most common words by how often they appear in English (wordfreq). Meanings from Wiktionary; this is not an official Scrabble, Words With Friends or Wordle word list. Wiktionary data of 2026-09-02.

Cite this page: “5-Letter Words Starting with SI: 55 Words.” Word.ws, https://word.ws/words/5-letter/starting-with-si. Based on Wiktionary, CC BY-SA 4.0.