choir:
(a word referring to a group with the plural form ‘choirs‘; pronunciation: the letters ‘cho’ are said with ‘kwa’ sound as in “quality” — for the right pronunciation of this word, please click here)
‘Choral’ is the adjective form of “choir”; ‘carol’ means a song of praise, especially of the songs sung at Christmas; and ‘chorus’ means a group of singers singing any song together, especially in a music/concert halls and theatres
a group of singers singing together;
a group of people who sing together during a religious service, as in a church, under the guidance of a choirmaster, also called ‘choristers‘,

a church choir singing
e.g.
Jane and her cousin joined the church choir, and since joining, they have been attending the practise sessions every evening.
Most people feel proud to be members of the local choir.
There are usually competitions between choirs of the county before Christmas and several choirs participate hoping to win the Best Choir title.
For an interesting article on a church choir, please click here, and for a news item on ‘choir competition’, please click here.
