How Do You Spell MOST ONCALL?
Pronunciation: [mˈə͡ʊst ˈɒnkɔːl] (IPA) 
The correct spelling of the phrase "most oncall" is actually "most on-call". The pronunciation is /moʊst ˈɒnkɔːl/ , with the stress on the second syllable of on-call. The hyphen between "on" and "call" helps to clarify that these two words function together as a compound modifier. This means that "most on-call" describes a person who is the most available or ready to respond for duty at any given time. In professional settings such as healthcare or emergency services, being "most on-call" can be an important responsibility.
