Hi Juhn, "Damn" is a curse word (most people know not to say it around children), but it's pretty low on the curse word hierarchy. Many people say "damn" at the office, but most people wait until they're comfortable with the particular coworker they're talking to before using it around them. You typically wouldn't say "damn" in an interview, for example. As for daily life, like you noted, "damn" can be used in a variety of different contexts, and mean a variety of different things. The set phrase it's used in in this instance, "I don't give a damn", is pretty dismissive, and would be rude in all the same contexts that "I don't care" would be; however, the rudeness is more based on the dismissiveness than on the word "damn" itself. Hope that helps clear things up, but let me know if not! :-)

"Damn" is a bad word and should be used carefully. You could say it in front of your close friends, but not at the office or in polite company. You already know that "I don't give a damn" means "I don't care." If you're mad at someone, you could also say, "Damn you!" which is similar to "Go to hell." "Damn" is also a filler word that is used for emphasis. "Give me the damn keys already!!" "Damned" is a synonym for "condemned," and could also "hopeless" or "cursed." Hope that helps! :-)

I am grateful for this nice comment, Dan. This is the very what makes me clear. Those seven words is good to learn the culture. I don't guess any words to 'damn' in Japanese, and I was hard to imagine it. It may be from the difference in thinking of God and the hell.

"Damn" literally refers to a common belief in certain Western traditions that, after death, dead people will be judged, and then either allowed into heaven or condemned to hell. "Damn" is a outdated version of the word "condemn;" notice the similar spelling. Hell is a place of neverending punishment. In one tradition, the punishment consists of experiencing the pain of being burned, with "fire and brimstone," forever. Thus, literally, "damn you" is wishing somebody worse than death. It is a wish, not only that they will die, but that they will go to hell. Like other "bad words," they are often just an angry noise, indicating fury. If I drop a hammer on my foot and yell "Damn!" I don't actually mean that I want the hammer to die and burn in hell. In the United States, when I was a child in the 1950s, "damn" and "hell" were fairly bad words, and in movies characters would usually say "darn" and "heck" instead. In the 1939 movie "Gone with the Wind," when the hero says to the heroine "Frankly, my dear, I don't give a damn," it was a shocking moment. "I don't give a damn" is an intense, angry way of saying "I don't care." Do a Google search for "seven words television" to find the famous list of "seven dirty words" that you cannot say on US television; you will see that although "hell" and "damn" are still "bad words," they are not on the list of the seven worst words.