Definition of YMCA in English:
 YMCA
nounwʌɪɛmsiːˈeɪˌwaɪ ˌɛm ˌsi ˈeɪ
1A welfare movement with branches all over the world that began in London in 1844.
- 1.1 A hostel run by the YMCA.
 
Origin
  
Abbreviation of Young Men's Christian Association.
   Definition of YMCA in US English:
 YMCA
nounˌwī ˌem ˌsē ˈāˌwaɪ ˌɛm ˌsi ˈeɪ
1A welfare movement that began in London in 1844 and now has branches all over the world.
- 1.1 A hostel or recreational facility run by the YMCA.
 
Origin
  
Abbreviation of Young Men's Christian Association.