to change the way you are walking so that you start walking in the same rhythm as the person you are walking with :
He caught her up and fell into step beside her.
to change the way you are walking so that you start walking in the same rhythm as the person you are walking with :
He caught her up and fell into step beside her.
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005