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There are 9 ten-letter words containing SECON

ARCSECONDS• arcseconds n. Plural of arcsecond.
• arc-seconds n. Plural of arc-second.
• ARCSECOND n. a unit of angle measurement, 1/3600 of a degree, also ARCSEC.
ATTOSECOND• attosecond n. (Metrology) An SI unit of time equal to 10-18 seconds. Symbol: as.
• ATTOSECOND n. ten to the power of minus eighteen seconds.
DISECONOMY• diseconomy n. (Economics) A financial drawback or cost arising from a process.
• DISECONOMY n. lack of economy; a factor responsible for an increase in cost.
NANOSECOND• nanosecond n. A measure of time equal to one billionth of a second. Abbreviation: ns.
• NANOSECOND n. a billionth of a second.
PICOSECOND• picosecond n. (Metrology) An SI unit of time equal to 10-12 seconds. Symbol: ps.
• PICOSECOND n. a trillionth of a second.
SECONDHAND• secondhand adj. (Of goods) Not new; previously owned and used by another.
• secondhand adj. (Of a dealer) Dealing in such merchandise.
• secondhand adj. (Figurative) Indirect; from a secondary source; not firsthand.
SECONDINGS• SECONDING n. the act of supporting a speaker in a debate.
SECONDMENT• secondment n. The process or state of being seconded, the temporary transfer of a person from their normal duty to…
• SECONDMENT n. the act of seconding.
UNSECONDED• unseconded adj. Not seconded; not supported, aided, or assisted.
• unseconded adj. (Obsolete) Not exemplified a second time.
• UNSECONDED adj. not seconded.

Scrabble words — in black are valid world wide — in RED are not valid in North America — in GREEN are valid only in North America.
Definitions are short excerpt from the WikWik.org and 1Word.ws.

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See this list for:

  • English Wiktionary: 56 words
  • Scrabble in French: 10 words
  • Scrabble in Spanish: no word
  • Scrabble in Italian: 17 words
  • Scrabble in German: no word
  • Scrabble in Romanian: 11 words


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