Being called ‚Massive‘ as a guy?

Don’t want to post photos but i’ll describe instead: I am 6ft tall (1 inch above average in my country) and have i would say slightly narrow shoulders (3 heads across not including ears). I think i look pretty average. I have been going to the gym and doing a lot of rowing and running but I feel like i look the same as i did this time last year. Over the last 4 months or so people have started saying that I look ‚massive‘ or ‚shredded‘. I really don’t see what they are talking about when i look in the mirror. Even in photos next to people i look the same size as them in my opinion. Are people just being nice to me or is it possible i am blind to my own progress. Or maybe am i taking the word massive to literally? Maybe it just means fit?