פי

• (Modern Israeli Hebrew) IPA^(key): /pi/

פִּי • (pi)

1. singular construct state form of פֶּה (pe)‎.
2. singular form of פֶּה (pe)‎ with first-person singular personal pronoun as possessor.

פִּי • (pi)

2. Multiplicative particle: followed by a number to indicate multiplication by that number; times; -fold; multiplied by

   פִּי שְׁלוֹשָׁה ― pi shloshá ― triple; threefold; three times

   אֲנִי גָּבֹהַּ פִּי שְׁנַיִם מִמֶּנּוּ ― aní gavóah pi sh'náyim miménu ― I am twice as tall as him

The number following פִּי is in masculine form, going against the convention that a number is in feminine form when used alone without a noun to agree with.

פַּי • (pay) f

1. pi (the 16th letter of the Classical and Modern Greek alphabets and the seventeenth in Old Greek)
2. (mathematics) pi (an irrational and transcendental constant representing the ratio of the circumference of a Euclidean circle to its diameter; approximately 3.14159265358979323846264338327950; usually written π)

פִי • (fi) f

1. phi (Φ, the 21st letter of the Euclidean and modern Greek alphabet, usually romanized as "ph")