hefty

An hefty person or thing is large and strong in size or amount.

When we talk about something being hefty, we usually mean that it's substantial or considerable. For example, if someone says they've got a hefty bill to pay at the end of the month, they're probably talking about a big amount of money. You might also hear that a new smartphone has a hefty price tag, meaning it costs quite a bit. Sometimes "hefty" can even be used in a more playful way, like saying someone's appetite is hefty after eating a huge meal. The word works for things too – if you're trying to carry a lot of luggage on a trip, the weight might feel hefty.