The idiom "sit tight" means to wait patiently and remain in one place or position until further instructions or information is given. It is often used to encourage someone to be patient and not to take any action until the situation becomes clearer or until they receive further instructions.
For example, if you are waiting for an important phone call, your friend might say to you, "Just sit tight and wait for the call. It should come soon." Or if you are in a meeting and someone asks a question that you don't know the answer to, your boss might say, "Just sit tight for a moment while I look up the information."
The phrase can also be used in a more literal sense, such as when you are in a car or on a plane and the driver or pilot asks you to "sit tight" while they make some adjustments or deal with a problem.
Overall, "sit tight" is a useful idiom to use when you want to encourage someone to be patient and wait for further instructions or information.
• The plane will be landing in a few minutes, so please sit tight and fasten your seatbelt. (informative)
• The hostages were instructed to sit tight and not make any sudden moves until the rescue team arrived. (intense situation)
• We need to sit tight and let the investigation take its course before making any accusations. (caution)
• Can you sit tight for a minute while I finish my work? (simple request)
• Despite the difficulties, we must sit tight and continue with our plans until we achieve our goals. (determination)
• The company is facing a financial crisis, but we need to sit tight and wait for the market to stabilize. (advice)