summate /sumˈāt/

To add together

• high-top
• high tops
• high-tops
• high treason
• hights
• highty-tighty
• high-up
• high-ups
• high-vacuum
• high-velocity
• high-viced
• high-voltage
• high water
• high-water mark
• high-water marks
• high waters
• highway
• Highway Code
• highwayman
• highwaymen
• highway patrol
• highways
• high-wing monoplane
• high-wing monoplanes
• high wire