Every time one of their men was lost, the white pieces showed no mercy. Soon there was a huddle of limp black players slumped along the wall. Twice, Ron only just noticed in time that Harry and Hermione were in danger. He himself darted around the board, taking almost as many white pieces as they had lost black ones. "We're nearly there [= (at) the entrance of next room]," he muttered suddenly. "Let me think let me think..." (Harry Potter and the Sorcerer's Stone)
Does ‘are’ mean 2 or 5 in OALD or something else? : It seems to me 5. If yes, can the phrase be substituted with ‘we nearly arrived there’?
2 [intransitive] + adverb/preposition to be located; to be in a place
5 [INTRANSITIVE] + adverb/preposition to attend an event; to be present in a place
Is there any way I can easily determine things like this for future reference?