What part of speech is telegraph?

"Telegraph" can be several parts of speech depending on how it's used:

* Noun: This is the most common usage, referring to the device itself.

* Example: "He sent a message via telegraph."

* Verb: This refers to the act of sending a message using a telegraph.

* Example: "They telegraphed the news to the family."

* Adjective: This describes something related to telegraphs or their use.

* Example: "They used telegraph wires to communicate."

So, to determine the part of speech, you need to look at how it's used in the sentence.