This is the 5506th most frequent Russian word.
подходящее
Suitable.
In this sentence, 'подходящий' is used as an adjective meaning 'appropriate' or 'suitable' to describe the moment.
Это был подходящий момент для начала разговора.
It was an appropriate moment to start the conversation.
Here, 'подходящие' is a form of the adjective used to describe words as being fitting or appropriate.
Ты выбрал подходящие слова для описания проблемы.
You chose suitable words to describe the problem.
In this usage, 'подходящую' is the feminine singular accusative form of the adjective, modifying the noun clothing.