Is the word end an adjective?

No, "end" is not typically used as an adjective. It is most commonly used as a noun, verb, or adverb.

Here are some examples:

Noun: "The end of the story was sad."

Verb: "The meeting will end at 5 pm."

Adverb: "They walked end to end in a long line."

While there are some instances where "end" might be used in a way that resembles an adjective, it's generally considered a different part of speech.