The spelling of the word "running out ons" can be explained using the International Phonetic Alphabet (IPA). The first two syllables are pronounced as "ˈrʌnɪŋ aʊt", with the stress on the first syllable. The third syllable is a pronoun, "on", which is pronounced as "ɒn". The final syllable, "s", simply indicates that the word is plural. "Running out ons" is not a common phrase or word in English, so its usage may be limited or specific to a certain context.