The term 'front end' is used to describe the user-facing side of a system, such as a website or application. The crossword solutions for this term are PROW (4 letters), IER (3 letters), CEASEFIRE (9 letters), and LOWERCASET (10 letters). PROW stands for Programmer's Row, which is a group of software engineers who work on the front end of a system. IER stands for Interface Engineer, which is a person who designs the user interface of a system. CEASEFIRE is a term used to describe when two sides in a conflict agree to stop fighting. Finally, LOWERCASET is a term used to describe when all letters in a word or phrase are written in lowercase.