Meaning

5 senses
  1. (countable, uncountable)The sixteenth letter of the Classical and Modern Greek alphabets and the seventeenth in Old Greek.

    Pi

    пиpi

    the 16th letter of the Greek alphabet

  2. (countable, uncountable)An irrational and transcendental constant representing the ratio of the circumference of a Euclidean circle to its diameter; approximately 3.14159265.

    Pi, Kreiszahl

    пиpi

    the ratio of the circumference to the diameter of a circle; approximately equal to 3.14159265358979323846 …

  3. (countable, uncountable)Metal type that has been spilled, mixed together, or disordered.

  4. Pica (conventionally, 12 points = 1 pica, 6 picas = 1 inch).

  5. Piaster.

Examples

39 sentences
  1. Tom claims that he knows the value of pi to a thousand places.

    Том стверджує, що він знає значення числа Пі до тисячного знаку після коми. — deniko

  2. I'd like a piña colada.

    deIch hätte gern eine Pi­ña co­la­da. — Luiaard

  3. I would like a piña colada.

  4. How many digits does pi have?

    Скільки цифр має число Пі? — deniko

    deWie viele Stellen hat die Zahl Pi? — brauchinet

    CC BY 2.0 FR · Tatoeba · mailohilohi · B2Open on TatoebaReport a problem
  5. Tom claims he knows the value of pi to a thousand places.

    Том стверджує, що він знає значення числа Пі до тисячного знаку після коми. — deniko

    deTom behauptet, er kenne die ersten tausend Dezimalstellen von Pi. — Zitronensaft

    CC0 · Tatoeba · deniko · B2Open on TatoebaReport a problem

Translations

8 languages
Русский
By meaning 1
letter of Greek alphabet:
Deutsch
By meaning 2
letter of Greek alphabet:
irrational mathematical constant:

Origin

From Koine Greek πῖ (pî), from Ancient Greek πεῖ (peî), ultimately from Proto-Semitic *pay

From Koine Greek πῖ (pî), from Ancient Greek πεῖ (peî), ultimately from Proto-Semitic *pay- (“mouth”). Doublet of pe. Its mathematical use apparently stems from its use as the first letter in περιφέρεια (periphéreia, “periphery; circumference”) and was first cited in 1706 in the Synopsis Palmariorum Matheseos by William Jones.

Unclear. Possibly from the Greek letter (see Etymology 1) as a common example of non-alphabetic character, possibly from pica (“type size”) (see Etymology 3), possibly from pie referring to its mixed nature or pied (“checkered, multicoloured”).

Abbreviations.

Wiktionary, CC BY-SA 4.0 · source

Forms

plural: pis
Singularpi
Pluralpis

regular

Synonyms

12 synonyms
Close in meaning

Word family

12 related words

See also

neighbours in the dictionary
pi — meaning, examples, forms, synonyms | Krumeto