The idiom "more than meets the eye" is used to describe something that appears to be ordinary or simple but has hidden depths or complexities. It suggests that there is more to a person, situation, or thing than what is immediately apparent.

The idiom "silver lining" refers to the idea that there is always something good or positive that comes out of a difficult or negative situation. It suggests that even though things may seem bleak at first, there is always a brighter future waiting for you.

The idiom "de jure" refers to something that is legally recognized or established, even if it does not exist in reality or is not fully functional. It can also refer to something that is officially or formally declared as being true or correct, regardless of its actual merit or validity.

The idiom "tight-lipped" refers to someone who is unwilling to reveal information or share their thoughts, often due to fear of criticism or judgment. They may be reserved or guarded, keeping their feelings and opinions close to the vest.

The idiom "when in Rome, do as the Romans" means to follow the customs, traditions, or behavior of a particular place or culture when you are there. It suggests that one should adapt to the local norms and avoid imposing their own values or ways on others.