A woman flight attendant. See Usage Note at -ess.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "stewardess" in a sentence
"Life on Mars (“Coffee, Tea or Annie”) – Slain stewardess turns out to be the spitting image of Annie, so she goes undercover to find the murderer."
"I called the stewardess and asked for another Coke."
"Here he was, spending money he might never get back to give her a chance, and she called the stewardess because he kissed her!"