כפול

Passive participle of the verb כָּפַל‎ (kafál).

כָּפוּל • (kafúl) (feminine כְּפוּלָה‎, masculine plural כְּפוּלִים‎, feminine plural כְּפוּלוֹת‎)

1. Double, dual: having two parts instead of one.

   ‏סוכן כפול‎‎ ― sokhén kafúl ― a double agent

   ‏כוכבים כפולים‎‎ ― kokhavím k'fulím ― binary stars

   ‏רצח כפול‎‎ ― rétsakh kafúl ― a double murder

   ‏אזרחות כפולה‎‎ ― 'ezrakhút k'fulá ― dual citizenship

2. Times, multiplied by: used to indicate the operation of multiplication.

   ‏6 כפול 9‎ ― 6 kafúl 9 ― 6 times 9

3. Double, twice: twice as big.
4. Double, folded double.
   • Exodus 28:16, with translation of the Jewish Publication Society:

     ‏רָבוּעַ יִהְיֶה כָּפוּל זֶרֶת אָרְכּוֹ וְזֶרֶת רָחְבּוֹ׃‎‎

     ravúa' yihyé kafúl zéret 'orkó v'zéret rokhbó.
     rāḇū́aʿ yihye kāp̄ūl zéreṯ ʾorkō wəzéreṯ roḥbō.

     Four-square it shall be and double: a span shall be the length thereof, and a span the breadth thereof.

• “כָּפוּל” in Abraham Even-Shoshan (אַבְרָהָם אֶבֶן־שֹׁשָן) et al., הַמִּלּוֹן הֶחָדָשׁ‎ (ha-milón he-khadásh, “The New Dictionary”), Kiryat-Sefer Ltd. (קִרְיַת־סֵפֶר בְּע״ם)‎ (1984), →ISBN, volume 1 of 3 (א to כ), →ISBN, page 558.