An adverb.
As a unit of currency in Greece until the Euro was introduced, Drachmas is a noun
The red cross was made by a Swiss gentleman who sawmany people die in a war and made the red cross.
If your ABS light stays on you have a problem with the ABS and it is not functioning. Until the problem is fixed the light will remain on.
There should always be food until the sun or our main food supplies go extinct.
It is a now rather old-fashioned polite mode of address in letters and on envelopes. "mr. B. Smith, esq." was until some forty years ago common if you suspected (or pretended to suspect) the adressee to be well-born .
He had to adjust the settings until it was working the way he wanted it to.
She went down the line until she found the color top that she wanted.
he meant that nothing is impossible until you have tried to see if it's impossible.
At first not until he became a teenager i haven't figured out what he wanted to be as a young child but he wanted to as a teenager around 17ish
in the summer i always have a horrible allergy and it doesn't goes away until i get away from it
After Christmas they always put the decorations into the loft until they were needed again.
I sat in silent dejection until the time had passed.
Because it is neither true or false until the variable is replaced with a specific value making the sentence true or false.
Jerry Spinelli didn't always want to be a writer. Up until he was 16 years old, he wanted to be a major league baseball player. Then he realized that it was not going to happen so he chose to become a writer.
Because Maciek has a serious crush on Eve and always wanted to marry
Not sure which restaurant she wanted to eat at with her friend, she stood irresolutely trying to decide until she finally called her friend for suggestions.
In this sentence, "date" functions as a noun. It is used to specify a particular point in time, referring to the year 1860.