thirty

• العدد الكامل الدال على ثلاثين من الأشياء أو الأشخاص أو وحدات العد، وهو مضاعف للعشرة؛ ويُستعمل أيضًا كاسم أو صفة أو ضمير للدلالة على هذا العدد.

The cardinal numeral representing the quantity of thirty units; the thirtieth positive integer following twenty-nine; a composite number (2×3×5); a multiple of ten commonly used in counting, measurement, and timekeeping. Also functions as a noun (denoting the symbol, quantity, or group of thirty), adjective/determiner (modifying nouns to indicate quantity), and pronoun (standing in for a plural noun phrase).

1. Cardinal numeral: the number 30A1formal

   Used to denote a quantity of thirty persons or things; the thirtieth positive integer in the sequence of natural numbers; a composite number (2×3×5); represents a thirtyfold quantity in counting, mathematics, and everyday usage.

   العدد الأصلي: العدد 30

   • There are thirty days in April.
   • She scored thirty points in the volleyball match.
   • Thirty plus thirty equals sixty.
   • The briefing starts at thirty past the hour.
   • He completed thirty laps around the track.

2. Noun: the number, symbol, or group of thirtyA2formal

   A noun referring to the cardinal number thirty; the numeral symbol 30 or XXX; a set, collection, or group consisting of thirty items; a playing card displaying thirty (in extended decks); a team or ensemble of thirty members; in currency, a thirty-unit note or coin.

   اسم: العدد أو الرمز أو المجموعة من ثلاثين

   • The number thirty marks a significant anniversary milestone.
   • Circle the thirties in this statistical table.
   • The choir consists of a thirty of vocalists.
   • In some card variants, the thirty holds special scoring value.
   • The historical record mentions a thirty of appointed delegates.

3. Adjective/Determiner: amounting to thirtyA1formal

   Used attributively before a noun to indicate that the quantity or number of the noun is thirty; modifies plural countable nouns to specify exact quantity.

   عدد: بمقدار ثلاثين

   • They booked a thirty-day expedition to the Arctic.
   • We need thirty additional chairs for the conference hall.
   • The chemical formula requires thirty milliliters of the solvent.
   • She has thirty years of experience in clinical research.
   • Thirty international organizations endorsed the sustainability charter.

4. Pronoun: thirty people or things (plural)B1formal

   Used as a pronoun to refer to thirty previously mentioned or understood persons or things; takes plural verb agreement.

   ضمير: ثلاثون شخصًا أو شيئًا

   • Two hundred applied, but only thirty were selected for the fellowship.
   • I invited one hundred guests; thirty confirmed their attendance.
   • How many seats should we reserve? — Thirty will be ideal.
   • Several startups pitched, but thirty advanced to the accelerator program.
   • Of the manuscripts evaluated, thirty were accepted for publication.