In the United Kingdom, the most common and professional term used is "Cabin Crew." While "Flight Attendant" is understood and increasingly common due to American influence, "Cabin Crew" remains the industry standard and the term used by airlines like British Airways and Virgin Atlantic. Historically, the terms "Steward" or "Stewardess" were universal, but they have largely fallen out of favor in official capacities as the industry moved toward gender-neutral language. In more casual or older British slang, you might hear the term "Air Hostess," though this is now considered somewhat dated. When addressing a member of the crew directly, British passengers rarely use a specific title, instead opting for a polite "Excuse me" or "Sir/Ma'am." Within the aviation community, the lead flight attendant is often referred to as the "Purser" or the "In-flight Lead," reflecting a hierarchy that traces its roots back to maritime traditions where the purser was responsible for the ship's accounts and passenger welfare.