Refers to the English language as a whole, including its study, use, and instruction.
He is good at English.
Please speak in English.
He speaks English well.
I study English every day.
The meeting was conducted in English.
She is good at English.
I'm struggling because I'm not good at English.
英語 refers to the English language as a whole, while 英単語 refers to a single English vocabulary word.
English proficiency; command of English; English ability
English name (for a country, etc.) · English-derived nickname; Western name