Pi Day

ˈpaɪ deɪ

Definition

Definition of Pi Day - Reverso English Dictionary

Noun

mathematics

TECH.

annual celebration of the mathematical constant π

TECH.

Pi Day is celebrated on March 14th.

π Day

promotion

TECH.

day to promote mathematics and science

TECH.

Schools often hold events on Pi Day to promote math and science.

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Expressions with pi

pi-meson

type of meson consisting of a quark and an antiquark

The pi-meson plays a crucial role in the study of quantum chromodynamics..

Expressions with day

field day

day of outdoor activities and sports

The school organized a field day with various sports competitions..

black day

day when something very bad or sad happens

The accident made it a black day for the whole town.

day dot

from the earliest time, since something first began

I’ve loved football from day dot.

day job

main job someone does for regular income

He paints, but his day job is teaching.

end of the day

the time when the day finishes

We will meet at the end of the day.

late in the day

adv.

near the end of the day

They finished the project late in the day.

the other day

adv.

recently but not exactly sure when

I saw him the other day at the park.

an apple a day

exp.

simple healthy habits believed to help prevent illness

She swears by an apple a day to stay well during winter.

any day now

adv.

happening very soon without a specific time

The baby is due any day now.

bad hair day

day when hair is difficult to manage

I'm having a bad hair day today.

Examples of Pi Day in a sentence

Pi Day is a fun way to learn about mathematics.
Pi Day is celebrated with pie-eating contests and math games.
Universities host lectures and workshops on Pi Day.

View all translations of Pi Day

✨Click below to see the appropriate translations facing each meaning.

French:journée de Pi, Journée de Pi, ...
German:Pi-Tag, ...
Italian:Pi Day, giorno del Pi, ...
Spanish:Día de Pi, ...
Portuguese:Dia do Pi, ...
Chinese:圆周率日, ...
Japanese:パイデー, ...
Arabic:يَوْم باي, ...
Hebrew:יוֹם פַּאי, יוֹם הַפַּאי, ...
Russian:День числа Пи, ...
Ukrainian:День числа Пі, ...
Hindi:पाई डे, पाई दिवस, ...
Bengali:পাই দিবস, ...
Catalan:Dia de Pi, ...
Czech:Den pí, Mezinárodní den pí, ...
Danish:Pi-dag, Pi-dagen, ...
Dutch:Pi-dag, ...
Greek:Ημέρα του Π, Ημέρα του Πι, ...
Hungarian:pí napja, ...
Khmer:ទិវាពាយ, ទិវាពី, ...
Korean:파이 데이, ...
Persian:روز پی, ...
Polish:Dzień Liczby Pi, Dzień Pi, ...
Portuguese (BR):Dia do Pi, ...
Romanian:Ziua Pi, ...
Swedish:Pi-dagen, ...
Thai:วันพาย, ...
Turkish:Pi Günü, ...
Vietnamese:Ngày Pi, ...

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Definition of Pi Day - Reverso English Dictionary

Noun

Expressions with pi

Expressions with day

Terms related to Pi Day

Examples of Pi Day in a sentence

View all translations of Pi Day

Discover how Reverso redefines the dictionary

Go beyond “simple words”

Get more than a simple definition

Go from understanding to mastery