Amoh:	Measurement varying from 48 cm. – 60 cm.
Gud Asik:	If a pole or a wall is 10 Tefochim high, they are assumed halachically to go up even further. If the horizontal wire is fixed higher than the pole but the pole is accurately under it, the wire is considered as being on top of the continued part of the vertical pole.
Koneh Elyon:	The horizontal wire going from pole to pole.
Lechi:	Pole used to support the wire going across.
Lovud:	Less than 3 Tefochim. It is often halachically ignored. If, for example, the wall consists of horizontal boards with less than 3 Tefochim space between them, the space is entirely ignored.
Mechitzo:	Wall
Mechitzos she’enon nikoros:	Perpendicular walls which cannot be seen when standing on top of them due to a small protrusion e.g. ledge jutting out over the walls. The concept of gud asik does not apply here.
Min Hatzad:	According to Halocho, the wire must be exactly on top of the pole. If it is fixed to the side of the pole, it is halachically invalid.
Omed merubo al Haporutz:	A case where the width of the wall exceeds the width of the gap.
Pirtzoh:	A breach in a wall. If it is less than 10 Amos wide and not in  a keren zovis, it is classified as an entrance and does not matter.
Pischo bekeren zovis:	A breach in a wall surrounding a private domain, which is not in line with any existing wall i.e. it runs diagonally from one wall to the other.
Reshus Horabim:	A road considered a public domain not because of Gezeros Derabonon but by Torah Law. According to most Poskim Tzuras Hapesachs in such a road are of no avail.
Tefach:	Measurement varying from 8.00 – 10.00 cm.
Tzuras Hapesach:	Halachic device for closing a gap. It consists of the two poles and wire going across them.