✓ "She passed away last year." → She died. (Only used as euphemism for death.)
✓ "She passed on last year." → She died. (Also a euphemism for death.)
✓ "Can you pass on the message?" → Transmit/relay the message. (NOT about death.)
✓ "I'll pass on dessert, thanks." → Decline politely. (NOT about death.)
✗ "She passed away the message." → WRONG. Only "pass on" transmits things — not "pass away."
📖 Doña Carmen's Kitchen
Doña Carmen Araya had passed on more than recipes. She was 81 and had lived her whole life in Guácimo, in the Caribbean lowlands of Costa Rica.
Every Saturday, the family gathered in her kitchen. She would first pass out small cups of her famous cacao drink to welcome everyone, then pass around tamales, rice and beans, and sweet bread. For a few hours, the noise of modern life would pass by without touching them.
Carmen had always passed down the traditions of her grandmother — who had passed away before Carmen's own children were born, but whose memory lived in every dish. "Your great-grandmother never passed up a chance to cook for someone in need," Carmen would tell her grandchildren. "She used to pass off her talent as ordinary — but it was extraordinary."
For years, travelers who passed through Guácimo on the road between San José and Limón would stop and eat. Word had passed itself around the community — and eventually, the whole province.
One of Carmen's granddaughters, Lucía, had been passed over twice for a promotion at work and was feeling discouraged. Carmen listened, then said: "The people who passed you over today will pass by you tomorrow when you're ahead." Carmen had passed on more than her recipes. She had passed on her strength.