Final answer:
In the sentence, 'I like to put jam on my toast in the morning,' the word 'jam' is a noun.
Step-by-step explanation:
In the sentence 'I like to put jam on my toast in the morning,' the word 'jam' is used as a noun. It refers to a spreadable food made from fruit and sugar. Nouns are words that name people, places, things, or ideas.
Learn more about part of speech of the word 'jam'