The painting is a masterpiece in the truest sense of the word.

这幅画是名副其实的杰作。

《牛津词典》

Failing at something can help you discover your truest friends, or help you find unexpected motivation to succeed.

在某些事情上的失败可以帮助你发现最真诚的朋友，或帮你找到意想不到的成功动力。

youdao

Books, I realise, have been one of my longest, truest friends.

书籍是我最为长久、真诚的朋友。

youdao

Some people say it is the truest of American sports.

VOA: special.2009.02.16

He said Catholics do no injustice to anyone by presenting Christ as an opportunity of finding what he called "their truest and most authentic selves, the joy of finding life."

VOA: standard.2009.03.22

Today, the hip-hop impresario has evolved into a celebrity, in the truest sense of the word.

FORBES: Magazine Article

It's a "fat farm" in the truest sense--but too much fattening can hurt the taste.

FORBES: Magazine Article

"She was beautiful in beauty's truest form, a soul filled with goodness, " she added.

BBC: Photo of Catherine Gowing and candle inside funeral church