A sanctuary city is a term used for a municipality that limits its cooperation with federal authorities to enforce immigration laws. There are several synonyms for the term sanctuary city, such as immigrant-friendly city, refuge city, haven city, and safe haven city. These cities offer a safe space for undocumented immigrants who fear deportation. Sanctuary cities prevent local law enforcement from facilitating the deportation of undocumented immigrants and protect their basic human rights. The concept of sanctuary cities gained widespread popularity in the United States during the Trump administration due to its strict immigration policies. Despite criticisms by some, sanctuary cities remain an essential resource for immigrants seeking protection and a sense of security in a foreign land.