פי

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

פִּי • (pi)

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

פִּי • (pi)

1. 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 (Greek letter and mathematics constant)

פִי • (fi) f

1. phi (Greek letter)