from the side; from one's side
Describes physical direction or position: something comes from the side, or someone approaches from the side.
A car suddenly came out from the side.
He quietly approached from the side.
from an outsider; from an uninvolved person
Used when someone not directly involved in a matter interjects or interferes. Often appears in the set phrase 横から口を挟む (to cut in from the side).
See also: 横から口を挟む
Please don't cut in from the side during the meeting.
Don't say unnecessary things from the sidelines.