Keystone (disambiguation)

In architecture, keystone stands for:

• the keystone at arches and vaults
• the keystone of a pyramid or an obelisk, see Pyramidion

The keystone stands for:

• the company Schlussstein , a planned German operation during the First World War

See also:

Wiktionary: keystone  - explanations of meanings, word origins, synonyms, translations

This is a disambiguation page for differentiating between several terms identified with the same word.