• n. Strength, might.

  • n. Authority.

  • n. Faculty, ability.

  • n. Energy,

  • n. Capacity.

Example Sentences

  • “I don't think that skinny bochur has the koyach to carry his own seforim.” (Weiser)

  • “Only the Mashgiach has the koyach to change the curfew for the dorm.” (Weiser)

  • “As long as he has the koyach to communicate, I wouldn't assume him to be stupid.” (Weiser)

  • “I'm so tired that I don't even have the koyach to brush my teeth and put on my pajamas.” (Weiser)

  • “A fund-raiser needs to have the koyach to speak publicly.” (Weiser)

  • "May Hashem grant you health and koyach so that you can contuine in your noble avoidas hakodesh." (source)

Languages of Origin

  • Textual Hebrew
  • Yiddish


  • TH כח > Y כּוח koyekh

    • Who Uses This

      • Religious: Jews who are engaged in religious observance and have some Jewish education
      • Older: Jews who are middle-aged and older
      • Ashkenazim: Jews with Ashkenazi heritage


      • North America


      • Yiddish and English: A Century of Yiddish in America, by Sol Steinmetz (Tuscaloosa, 1986).
      • Frumspeak: The First Dictionary of Yeshivish, by Chaim Weiser (Northvale, 1995).
      • Dictionary of Jewish Usage: A Popular Guide to the Use of Jewish Terms, by Sol Steinmetz (Lanham, MD, 2005).

      Alternative Spellings

      koikhos, koychos, koykhos, koichos, koyakh, koiach, koiakh, koyekh, koyech, koyach

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