Plain English Meaning
An ILS 29 is the instrument approach that lines you up with Runway 29 and brings you down to the runway using radio signals for left-right and up-down guidance.
Full Definition
ILS 29 is the published Instrument Landing System approach procedure that guides an aircraft to Runway 29 at a given airport. The number 29 refers to the runway's magnetic heading, rounded to the nearest ten degrees (in this case, approximately 290°). The ILS itself provides precise lateral guidance (localizer) and vertical guidance (glideslope) to the runway threshold.
Context Anchor
Seen on avionics, nearest-airport pages, approach lists, , and in discussions.