at fault - to be responsible for something, to be to blame for something The truck driver was at fault for the terrible accident. at first - at the beginning At first, I did not want to go to the movie but I later changed my mind. at first blush - when first seen, without careful study At first blush the man seemed like a good worker but later he had many problems. at hand - within reach, nearby I stopped working because I did not have any tools at hand. at heart - basically, fundamentally The woman is a nice person at heart although many people dislike her. at.
