Vertical Traffic Light on Facebook

What it signals here

reaction meaning

Used in comments to approve or validate a post — 'this gets the 🚦 green light from me'

comment use

Dropped in event pages to confirm attendance or confirm plans are on.

boomer interpretation

Older users tend to use it literally — in posts about driving, traffic, or road safety.

group use

Used in group chats and community pages to signal that an event or plan is approved and ready.

See it elsewhere