A loanword is a word that is borrowed from one language and used in another without translation. This often happens when cultures interact through trade, colonization, or technology. For example, the English word "café" comes from the French language, reflecting the influence of French culture on English-speaking countries. Loanwords can retain their original spelling and pronunciation or be adapted to fit the phonetic and grammatical rules of the borrowing language. Other examples include "piano" from Italian and "sushi" from Japanese. These words enrich the vocabulary of the borrowing language and reflect its cultural exchanges.