What does "cremains" mean?

Cremated remains of a deceased person.

What is a synonym for "cremains"?

Common synonyms include: ashes, cremated remains, cremation, cremations, mortal remains.

/kɹɪˈmeɪnz/ noun

noun ·Rare ·Advanced level

Noun

1
Cremated remains of a deceased person. plural, plural-only
"Some people prefer to keep the cremains in their homes in a special place."
2
the remains of a dead body after cremation wordnet

"When my grandmother passed away and was cremated, her cremains fit into a small box that weighed next to nothing."

Blend of cremated + remains. Apparently originally a euphemism used by undertakers.