1.
this side, in front
The area or position closer to the speaker, as opposed to the back or far side.
手前 is the opposite of 奥 (back/interior). It indicates the side closer to the speaker. When giving directions, [place]の手前 means 'just before [place].' The word can also be used as a humble form of 'I' in very formal situations, but this usage is quite old-fashioned.