lay reference number

Trails, Lay, Aimpoint established, Boresight verified, Safe [verification of lay], Prefire checks performed, Ammunition Prepared

reference number (order / message / report)

target reference number

attitude-and-heading reference system / attitude and heading reference system (AHRS)

lay

lay a bridge

lay a cable

lay a gun

lay a mine / mine field

lay a smoke screen

lay an aim

lay an ambush

lay down arms

lay eggs

lay flat

lay siege to

lay tracks

defensive layout / lay-out

lay an аim

lay down in an order

lay on reconnaissance

lay сables

lay smoke

lay down а concentration

lay down

lay down fire

minefield report of intention to lay

lay on an attack

lay down weapons

lay siege (to)

lay still and play dead

lay an ambuscade