1. Being of equal extent or scope or duration
   - coextensive, conterminous

See also: commensurate, coterminously

• headquarters
• headquarters staff
• headrace
• headrest
• headroom
• heads-up
• heads-up display
• headsail
• headscarf
• headset
• headshake
• headshaking
• headship
• headshot
• headsman
• headspace
• headspring
• headstall
• headstand
• headstock
• headstone
• headstream
• headstrong
• headwaiter
• headwater