Two words I often hear English learners confuse are «fun» and «funny». Part of the problem is that they look so much alike. However, these two words don’t mean the same thing and are used to express different ideas.
Let’s start with «fun». The first thing to remember is that it can be either an uncountable noun or an adjective. It means that something is entertaining or enjoyable. We use it to describe different activities that we do, like hanging out with friends, spending a day at the beach, or having a picnic on a warm, sunny day. Here are some examples:
Driving a car is fun! I really enjoy it!
Jake is really fun to be around. He tells the most interesting stories.
Skydiving sounds like a lot of fun.
Have fun at the party tonight!
«Funny» is an adjective and is used to describe things that make us laugh. Things that are funny include comedy movies, jokes, and incidents/accidents (It was funny when he tripped and fell!). For example:
John entertained everyone all evening with a few funny stories from his childhood.
This is the funniest book I have ever read! I can’t stop laughing!
«Funny» can also be used to describe something as wrong or strange:
The pizza that has been in the fridge since last week smells funny.
«What’s wrong?» «I don’t know. I just feel funny.» (I don’t feel well)