learn (something) from scratch

Translations
учить (что-то) с нуля
They had to learn the language from scratch.
Им пришлось учить язык с нуля.
Definitions
To acquire knowledge or skills in a subject or activity starting from the very beginning, without any prior experience or understanding.
Words
learn

verb
изучать
something

pronoun
что-то
from

preposition
с
scratch

noun
нуля