school‧child /ˈskuːltʃaɪld/ noun (plural schoolchildren /-tʃɪldrən/) [countable]
a child attending school

[TahlilGaran] Dictionary of Contemporary English ▲

student someone who is studying at a university or school. In British English, student is not usually used to refer to a child at primary school:
a student at Moscow University
How many students are there in your class?
The university has a lot of overseas students.
Most schools have special classes for students with learning difficulties.
pupil especially British English someone who is being taught in a particular school or by a particular teacher:
The school has 300 pupils.
He received a letter from one of his former pupils.
schoolchild a child who goes to school:
The play was performed by a group of local schoolchildren.
schoolboy/schoolgirl especially British English a boy or girl who goes to school – used especially when talking about how they behave, or that time in someone’s life:
They were behaving like naughty schoolgirls.
When he was a schoolboy, no one had heard of computers.
He blushed at her like a schoolboy.
learner someone who is learning a foreign language:
Learners often have problems with pronunciation.
a book for foreign learners of English

[TahlilGaran] English Thesaurus ▲