It means to be extremely thin with signs of ill health or starvation, such as sunken cheeks, deeply recessed eyes and so on.
The girl was very gaunt, but she was very healthy as well. Zombies are very gaunt looking, but it's probably because they're dead.
The gaunt professor never seemed to leave his lab when experiments were being conducted.
The people in the village were gaunt because of no water to drink
According to Wikipedia, it describes a living thing as being bony, thin and/or sickly.
His haggard expression showed the stress of the last few weeks. When he was finally rescued from the woods, he was gaunt and haggard.
The gaunt homeless man thrusted his money cup out to anyone who passed by him.
The girl was very gaunt, but she was very healthy as well. Zombies are very gaunt looking, but it's probably because they're dead.
The gaunt professor never seemed to leave his lab when experiments were being conducted.
skinny face
gaunt
The man who gave John Gaunt his focus word in "Children of the Lamp" was the mysterious man known as the Ancient One. The focus word is a powerful tool that helps John Gaunt unlock his magical abilities and connect with his genie heritage.
Tom Marvolo Riddle and Marvolo Gaunt are characters in a fictional story... you know what the word 'fiction' means, do you not?
Tilly Gaunt's birth name is Matilda Gaunt.
Genevieve Gaunt's birth name is Genevieve Wilhemina Gaunt.
John of Gaunt has written: 'John of Gaunt's register, 1379-1383'
The people in the village were gaunt because of no water to drink
Gaunt's Ghosts was created in 000.