Flight
another word for large group is clan.
A group of stairs is referred to as a flight. Example in a sentence- I followed him up a flight of stairs.
choir or orchestra is another word for music group
stairs
Another word for gather or collect is... handle or group together.
stairs = la escalera
Steps, stairs, escalator, and stairway are all synonyms of staircase.
Another word for religious group could be "faith community" or "religious organization."
Flight of stairs and Fleet of ships.
Another word for study group is "learning circle" or "study session".
The French word for stairs is "escalier."
A pair of stairs is another term for a flight of stairs.