eigth

The cardinal numeral representing the quantity of eight units; the eighth positive integer following seven; the first perfect cube of a prime number (2³). Also functions as a noun (denoting the symbol, quantity, or group of eight), adjective/determiner (modifying nouns to indicate quantity), and pronoun (standing in for a plural noun phrase).

• 🇨🇳基数词，表示八个事物、人或计数单位；也可用作名词、限定词或代词。

1. Cardinal numeral: the number 8 A1 formal

   Used to denote a quantity of eight persons or things; the eighth positive integer in the sequence of natural numbers; the first perfect cube of a prime number (2×2×2); represents an octet, octuplet, or octuple quantity in counting, mathematics, and everyday usage.

   • There are eight planets in our solar system.
   • She ordered eight slices of pizza.
   • Eight plus eight equals sixteen.
   • They waited for eight minutes at the station.
   • He scored eight points in the first quarter.

   🇨🇳基数词：数字8

2. Noun: the number, symbol, or group of eight A2 formal

   A noun referring to the cardinal number eight; the numeral symbol 8; a set, collection, or group consisting of eight items; a team, ensemble, or musical group of eight members; commonly used in sports and rowing to denote a crew of eight.

   • The number eight is considered highly auspicious in many Asian cultures.
   • Write the digit as an eight, not a three.
   • The university eight won the national rowing championship.
   • She played the eight of spades to take the trick.
   • The octet performed a contemporary jazz piece.

   🇨🇳名词：数字八、符号8或八人一组

3. Adjective/Determiner: amounting to eight A1 formal

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

   • They booked an eight-night cruise.
   • We need eight additional boxes for the move.
   • The recipe calls for eight ounces of chocolate.
   • She worked eight consecutive shifts.
   • Eight countries signed the new trade agreement.

   🇨🇳限定词/形容词：数量为八

4. Pronoun: eight people or things (plural) B1 formal

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

   • Twenty applied, but only eight were shortlisted.
   • I invited fifteen colleagues; eight accepted the invitation.
   • How many tickets do you require? — Eight will suffice.
   • Several bands auditioned, but eight made it to the final round.
   • Of the proposals reviewed, eight were approved for funding.

   🇨🇳代词：八个（人或事物）

• eighth ordinal