Can somebody explain me the difference between these two words?
Thank you.

Emotion: smile
Hi Phoebita,

Welcome to the Forum.

Tom only loves his job>>>> His job is the only thing he loves. He loves it exclusively. 'Only' is a neutral, factual kind of adjective.

Tom merely loves his job>>> This suggests that this love is a thing of little worth, in other words that there are other things he should love more. 'Merely' is a dismissive, negative kind of adjective.

Best wishes, Clive
Thanks CliveEmotion: big smile