coalesce /kō-ə-lesˈ/

1. To grow together or unite into one whole
2. To fuse

coalescˈence noun

1. Growing into each other
2. Fusion

coalescˈent adjective

• hard hat
• hard hats
• hardhead
• hard-headed
• hardheads
• hard-hearted
• hard-heartedly
• hard-heartedness
• hard hit
• hard-hit
• hard-hitting
• hard house
• hardier
• hardiest
• hardihead
• hardiheads
• hardihood
• hardihoods
• hardily
• hardiment
• hardiments
• hardiness
• hardinesses
• hardish
• hard labour