What is another word for grin and bear it?
Pronunciation: [ɡɹˈɪn and bˈe͡əɹ ɪt] (IPA) 
"Grin and bear it" is a commonly used phrase that means to endure a difficult situation with a smile and without complaining. There are several synonyms that can be used in place of this phrase, including "grit your teeth," "hold your tongue," "suffer in silence," "keep a stiff upper lip," and "accept the inevitable." These expressions all convey the same meaning, but in a slightly different way. While some imply a physical reaction like gritting your teeth, others suggest maintaining emotional strength. Regardless of which expression is used, they all encourage resilience and a determination to persevere in the face of adversity.
