Pi [noun]

● Sleuth

● Agent

● Cop

● Snoop

● Tail

● Private investigator

● P.I.

● Bird dog

● Bloodhound

● Dick

● Peeper

● Pi

● Sherlock

● Private eye

● Principal investigator

● Operative

● Private investigator

● Private detective

● Ramesses

● Ramses

● Utes

● Plc

● Pie

● Area

● Detective

● Ratio

● Rho

● Tec

● Whoopee

● Carpus

● Cippus

● Constant

● Diam

● Diameter

● Eta

● Euripus

● Greek

● Hammurabi

● Lene

● Omicron

● Pappus

● Pedal

● Piezometer

● Polypus

● Powell

● Rhos

● Sampi

● San

● Sigma

● Surd

● Tail

● Tenuis

● Tracer

● 77

● Also

● Ammo

● Anna

● Avocet

● Baking

● Beach plum

● Bontebok

● Calico

● Chiffon

● Cobblers

● Cooking apple

● Crimp

● Crimped

● Crimping

● Crust

● Crusted

● Custard

● Dabchick

● Dessert

● Dicrostonyx

● Dishwasher

● Dormant

● Fedora

● Flaky pastry

● Garden rhubarb

● Genus dicrostonyx

● Giblet

● Golden-eye

● Goldeneye

● Grebe

● Hamelin

● Hameln

● Helldiver

● Homemade

● Jagger

● Kitcat

● Manure

● Meringue

● Mince

● Mince pie

● Minced

● Mincemeat

● Molly

● Monosyllabic

● Mottled

● Mrs

● Mud

● Nesselrode

● Opal

● Oystercatcher

● Pandowdies

● Paste

● Pasties

● Pasting

● Pastry

● Pates

● Pecan