When receiving input in the language, we mostly first learn nouns that refer to physical objects, like “banana“ or “house“, and actions like “to walk“, “to eat“. Once we know enough of those it becomes easier for us to pick up words for adjectives like “red“, “big“, etc. We then start gaining some ability to understand more abstract words like “to like“, “to want“
— ❐ The 10 Commandments of Language Acquisition