Question

دختر بچه در سن ۱۲ سال را بالغ یا چه مینامند؟

 

Answer 1

'a preadolescent/preteen girl' (10-13)

https://en.m.wikipedia.org/wiki/Preadolescence

http://www.dictionary.com/browse/preteen

https://en.oxforddictionaries.com/definition/preadolescent

But personally I like the word 'prepubescent' I hear it a lot in legal contexts (13 or younger-onset of puberty may vary)

'a prepubescent girl'

https://www.merriam-webster.com/dictionary/prepubescent

Answer 2

Logical version of the ages:

Baby until she walks, or until 3
Toddler -- walking until 3
Preschooler 3-5
(kindergartener age 5, uncommon)

Child: 5–9

Tween: 10–12

Teen: 13–19

In terms of physical development:

Pre teens: 10–12 (early stages of puberty, starting to want more independence, start their menstrual cycle)

Early teens: 13–15: (mid stages of puberty, developing a more womanly shape)

Late teens: 16–18 ( being more independent, driving, working, final stages of puberty, etc)

That's only in terms of physical and phycologic development.

 

https://www.quora.com/What-is-a-boy-girl-called-when-he-she-is-1-6-years-old-6-11years-old-11-14-years-old-and-14-18-years-old