Keystone

Tar sands conduit

Keystone appears in numerous proper names, most notably Pennsylvania's nickname "the Keystone State"—so called because of its central position among the original thirteen colonies.

Keystone is also a brand name for beer and appears in place names and company names throughout the United States. (Lowercase keystone is the central stone of an arch.)

pennsylvania

state

Condition or mode

colonial · commonwealth · flag · motto · nickname · Appalachian · founding · constitution · American

Categories
Opposites
structural importance

Keystonetriviality

Unimportant small matter

incidental · afterthought · accessory · superfluity · periphery

architectural position

Keystonefoundation stone

Inscribed ceremonial building block

footstone · cornerstone · springer · capstone · impost

systemic role (ecological/organizational)

Keystonebit part

Small acting role

rank and file

Phrases
Family

Keystone Cops, keystones, keystone species

Familiarity
Top 500,000
Profile
Mostly American · Timeless · Concrete · Everyday, not technical · Rated G