This is the 4215th most frequent Japanese word.
交わす
"交わす" means "to exchange" or "to intersect."
In this sentence, "交わした" indicates the act of exchanging a promise, showcasing the verb's use in contexts of mutual action.
彼らは秘密の約束を交わした。
They exchanged a secret promise.
Here, "交わす" is used to describe the action of mutually exchanging greetings, emphasizing interpersonal interaction.
お互いに挨拶を交わすために立ち止まった。
They stopped to exchange greetings.
In this case, "交わす" is utilized to denote the exchange of smiles, reinforcing its application in scenarios involving reciprocal gestures.