importantthing

noun
UK /ɪmˈpɔːtənt θɪŋ/
US /ɪmˈpɔːrtənt θɪŋ/

Something that matters a lot and that you should care about.

Wearing a helmet is an importantthing to remember when you ride a bike.


OTHER MEANINGS

2. A job or task that must be done first.

Finishing your homework is an importantthing before you play games.

3. A person or object that people pay close attention to.

The firefighter was the importantthing at the school assembly.

4. A rule or idea that helps keep everyone safe and happy.

Sharing with friends is an importantthing in our classroom.