[bite|hold] {one's} tongue
1
to not say something, against one's wish, in order to avoid causing an argument or upsetting someone
The idiom "bite one's tongue" has its origins in the English language and dates back to at least the 16th century. The expression alludes to the literal act of biting down on one's own tongue to prevent oneself from speaking. It is commonly employed when someone wants to refrain from speaking their mind, opinions, or criticisms in order to maintain peace, avoid conflicts, or prevent hurting others' feelings.
- She often has to bite her tongue during meetings to avoid getting into arguments.
- I bite my tongue when my parents give me unsolicited advice to maintain harmony in the family.
- He regretted not biting his tongue during the heated argument; his harsh words caused irreparable damage.
- Despite her strong disagreement, she bit her tongue to keep the peace during the negotiation.
- In sensitive situations, it's important to know when to bite your tongue and choose diplomacy over confrontation.