"To conceal the truth" means to hide or keep something secret that is true or factual.
Sentences with «to conceal the truth»
When my husband and I met over the internet 5 years ago, we have often concealed the truth of our learning. (feedspot.com)
You see if he had NOTHING to hide he would not conceal the truth. (religion.blogs.cnn.com)
Baker largely tells his story from the kid's point of view — so while Halley is impetuous and often childlike herself, she's also frequently concealing the truth about her circumstances from the carefree Moonee. (vanityfair.com)