Flats and Stations

Flats noun - Footwear (shoes or slippers) with no heel (or a very low heel).

Stations and flats are semantically related. In some cases you can use "Stations" instead a noun "Flats".

Stations noun - (Roman Catholic Church) a devotion consisting of fourteen prayers said before a series of fourteen pictures or carvings representing successive incidents during Jesus' passage from Pilate's house to his crucifixion at Calvary.

Flats and stations are semantically related. Sometimes you can use "Flats" instead a noun "Stations".