MDBG Mobile Chinese English Dictionary (iPhone, Android, Windows Phone)

谢谢	xiè xie	to thank / thanks / thank you
感谢	gǎn xiè	(express) thanks / gratitude / grateful / thankful / thanks
由于	yóu yú	due to / as a result of / thanks to / owing to / since / because
亏	kuī	to lose (money); to have a deficit / to be deficient / to treat unfairly / luckily; fortunately; thanks to / (used to introduce an ironic remark about sb who has fallen short of expectations)
致辞	zhì cí	to express in words or writing / to make a speech (esp. short introduction, vote of thanks, afterword, funeral homily etc) / to address (an audience) / same as 致词
凭借	píng jiè	to rely on / to depend on / by means of / thanks to / sth that one relies on
多亏	duō kuī	thanks to / luckily
得益于	dé yì yú	to benefit from / thanks to
致谢	zhì xiè	expression of gratitude / to give thanks / a thank-you note / acknowledgement
托福	tuō fú	(old) thanks to your lucky influence (polite reply to health inquiries)
谢意	xiè yì	gratitude / thanks
致以	zhì yǐ	to express / to present / to extend / to tender (greetings, thanks etc)
答谢	dá xiè	to express one's thanks
鼎力	dǐng lì	(honorific) your kind efforts / thanks to your help
多谢	duō xiè	many thanks / thanks a lot
奉还	fèng huán	to return with thanks / to give back (honorific)
谢礼	xiè lǐ	honorarium / gift as thanks
不了	bù le	no thanks (used to politely but informally decline)
鸣谢	míng xiè	to express gratitude (esp. in public) / vote of thanks
称谢	chēng xiè	to express thanks