The spelling of the word "INVSTA" is incorrect, as the correct spelling in English is "INVEST". The word is pronounced /ɪnˈvɛst/ in IPA phonetic transcription. The sound represented by the letter "i" is the short vowel sound /ɪ/, while the sound represented by "e" is the short vowel sound /ɛ/. The word also includes the consonants /n/, /v/, /s/, and /t/. Accurate spelling is important for effective communication, and it is recommended to use dictionaries to verify spellings.