rethink

Rethink means to carefully think about an idea or decision again, often because you've changed your mind or have new information.

When we use the word "rethink", it usually means that someone has had a change of heart or a new realization. For example, if you're planning a big project and suddenly remember some flaws in your plan, you might need to rethink how you'll approach it. This doesn't mean going back to square one and starting all over again, but rather taking another look at the idea and making adjustments as needed. If someone says "let's rethink our strategy", they're suggesting that we take a closer look at what we're doing and try to come up with something better.

In some cases, you might use "rethink" when talking about a personal decision, like changing your mind about moving to a new city or quitting a job. You could say "I'm starting to rethink my decision to move, I miss my friends and family too much". It's also possible to talk about rethinking a policy or a law if people realize it has flaws or unintended consequences.

Note that the word "rethink" is usually used as a verb, but sometimes it can be an adjective, like in "a rethink of our company culture is needed", where it means a new way of thinking and doing things.