three·score 
(thrēskôr)
(thrēskôr)adj.
Being three times twenty; sixty.
threescore n. & pron.
- posthumous
- posthumously
- posthumousness
- posthypnotic suggestion
- postiche
- postilion
- postillion
- postimpressionism
- postimpressionist
- postimpressionistic
- postindustrial
- posting
- Post-it
- postlapsarian
- postlude
- postman
- postmark
- postmaster
- postmaster general
- postmastership
- postmenopausal
- postmenstrual
- postmeridian
- post meridiem
- postmillenarian