Nowadays means in the present time, especially when comparing how things are now to how they were in the past. When your grandmother says “Nowadays, everyone has a computer,” she's pointing out how different today is from when she was young.

You'll often hear nowadays in sentences that highlight change: “Nowadays, most people use GPS instead of paper maps” or “Nowadays, kids video call their friends instead of just talking on the phone.” The word carries a sense of reflection, noticing how the world has shifted.

People sometimes use nowadays with a slightly wistful tone, as if they're marveling at how much has changed. A teacher might say, “Nowadays, students can look up any fact in seconds,” remembering when she had to spend hours in the library searching through encyclopedias.

The word works best when you're making a genuine comparison between then and now. If you're just describing something happening today without that contrast, you might simply say “today” or “currently” instead. But when you want to emphasize that things are different from how they used to be, nowadays is the perfect word.