彼は病気にかこつけて会議を欠席した。
He used his illness as an excuse to skip the meeting.
出張にかこつけて、ついでに京都を観光してきた。
Using the business trip as a pretext, I did some sightseeing in Kyoto while I was at it.
仕事にかこつけるのはやめて、たまには家族と過ごしなさい。
Stop using work as an excuse and spend some time with your family once in a while.
彼女は忙しさにかこつけて返事を先延ばしにしていた。
She kept putting off her reply on the pretext of being busy.