This is the 458th most frequent Japanese word.
すれ
The Japanese word "すれ" is a conjugation of the verb "擦れる" (sureru), meaning "to rub," "to chafe," or "to wear."
In this sentence, 'すれ' is part of 'すれ違う', describing the action of passing by or crossing paths.
彼らがすれ違うとき、軽く会釈した。
When they passed each other, they exchanged a light nod.
In this example, 'すれ' is still a part of 'すれ違いざま', showing a passing moment of interaction.
鋭い視線がすれ違いざま彼を捉えた。
A sharp glance caught him as they passed by each other.
Here, 'すれ' in 'すれ違った' denotes the repeated action of passing by.