also: ちたび
noun
thousand times; a thousand times
Used to express a large number of repetitions, often in hyperbolic or emphatic contexts. Can also appear in fixed expressions like 千度も (as many as a thousand times).
彼は千度も同じことを言った。
He said the same thing a thousand times.
千度聞かれても答えは変わらない。
Even if I'm asked a thousand times, my answer won't change.
Compound of 千 (thousand) and 度 (times, occurrences). The reading せんど uses the on'yomi of both characters, while ちたび uses the kun'yomi of 千 and the native counter たび.