Breiner is spelled with the "ei" vowel combination, which is pronounced as "ay" in the International Phonetic Alphabet (IPA). This means that the word is pronounced as "bray-ner." The "r" sound is produced by vibrating the back of the mouth, while the "n" sound is created by pressing the tongue against the alveolar ridge, just behind the upper teeth. It is important to spell words correctly in order to communicate effectively and avoid confusion in written and spoken language.