1. (physics) the theory that space and time are relative concepts rather than absolute concepts
   - relativity, theory of relativity, relativity theory

Type of: scientific theory

• self-sufficing
• self-suggestion
• self-supporting
• self-sustained
• self-sustaining
• self-taught
• self-taught art
• self-torment
• self-torture
• self-whispered
• self-will
• self-willed
• self-winding
• self-worship
• self-worth
• selfhood
• selfish
• selfish person
• selfishly
• selfishness
• selfless
• selflessly
• selflessness
• selfsame
• selfsameness