let by

let (one) by

To allow one to pass by or around (someone or something). I need to get into the building to retrieve my briefcase—please let me by! I didn't want to drive any faster on the highway, so I moved closer to the curb to let the cars behind me by.
See also: by, let
Farlex Dictionary of Idioms.

let someone (get) by

 and let someone pass by
to permit someone to pass. Please let me get by. I am in a hurry. Let the paramedics by, please.
See also: by, let
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
See also:
  • let (one) by
  • let (one) get by
  • let (one) go by
  • let (one) go past
  • let (one) get past
  • go past
  • let (one) pass by
  • let (someone or something) past
  • let past
  • get (something) for (someone or something)
References in periodicals archive
(where appropriate), whereas if the let forms part of an apartment building the other occupiers must approve this let by any other interested owner (most likely they will refuse).