used to emphasize that it is important to do something or when you are annoyed about something Do be careful, for goodness' sake. Oh, for heaven's sake! For pity's sake, help me! Some people find the use of Christ, God, or heaven here offensive.
for Christ's, God's, goodness', heaven's, pity's, etc. sakejump to other results
if you do something for old times' sake, you do it because it is connected with something good that happened to you in the past
for old times' sakejump to other results
because of the interest or value something has, not because of the advantages it may bring I believe in education for its own sake. art for art's sake
for something's sakejump to other results
in order to help someone or something, or because you like someone or something They stayed together for the sake of the children. You can do it. Please, for my sake. I hope you're right, for all our sakes (= because this is important for all of us).
for the sake of somebody/something, for somebody's/something's sakejump to other results
in order to get or keep something The translation sacrifices naturalness for the sake of accuracy. She gave up smoking for the sake of her health. Don't get married just for the sake of it. Let's suppose,for the sake of argument (= in order to have a discussion), that interest rates went up by 2%.
for the sake of something/of doing somethingjump to other results