firstintime

noun
UK /ˌfɜːstɪnˈtaɪm/
US /ˌfɜːrstɪnˈtaɪm/

The very first time you do something.

I will never forget my firstintime riding a bike.


OTHER MEANINGS

2. The start of a new experience.

Her firstintime at the beach was full of excitement.

3. A special moment that happens only once.

His firstintime on a plane felt like magic.

4. The earliest memory of doing an activity.

My firstintime baking cookies was with Grandma.