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13-Letter Words That Start With: SEM

There are 45 13-letter words, 6 13-letter phrases and 0 13-letter abbr's that start with SEM.

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Expand?WordSave?LengthUsagePointsType
semicivilized13
30 adjectiveadj
adjective

• Somewhat or partially civilized.

semisynthetic13
23 adjectiveadj
adjective satellite

• not of natural origin; prepared or made artificially

semipermeable13
21 adjectiveadj
adjective satellite

• (of a membrane) selectively permeable

semiempirical13
21 adjectiveadj
adjective satellite

• relying to some extent on observation or experiment

semiconductor13
20 nounn
noun

• a substance as germanium or silicon whose electrical conductivity is intermediate between that of a metal and an insulator; its conductivity increases with temperature and in the presence of impurities

• a conductor made with semiconducting material

sempiternally13
20 adverb, adjectiveadv, adj
Valid word for Scrabble US
semilegendary13
20 adjectiveadj
Valid word for Scrabble US
semimonthlies13
20 nounn
noun

• a periodical that is published twice each month (or 24 issues per year)

adverb

• twice a month

adjective satellite

• occurring twice a month

semitonically13
20 adverb, adjectiveadv, adj
Valid word for Scrabble US
semiautomatic13
19 noun, adjectiven, adj
noun

• a pistol that is a semiautomatic firearm capable of loading and firing continuously

adjective satellite

• partially automatic

• (of firearms) capable of automatic loading and firing continuously

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Tip: Scrabble EU allows far more words than US! Also change the max length to see more words.

All 13 Letter Words

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