tufa /tooˈfə, tūˈfə/

1. Calc-sinter (often calcareous tufa)
2. Tuff or other porous rock (obsolete)

tufāˈceous adjective

• stand to one's guns
• stand-tos
• stand to win
• stand treat
• stand trial
• stand up
• stand-up
• stand up for
• stand upon
• stand upon one's watch
• stand upon points
• stand upon terms
• stand-ups
• stand up to
• stand well
• stand with
• stane
• stang
• stanged
• stanging
• stangs
• stanhope
• Stanhope press
• stanhopes
• staniel