How Do You Spell HARTLINE?
Pronunciation: [hˈɑːtla͡ɪn] (IPA) 
The spelling of the word "hartline" can be confusing due to the silent "e" at the end. In IPA phonetic transcription, it is pronounced as /ˈhɑːtlaɪn/. The first syllable is pronounced as "hart," with a long vowel sound as in "car." The second syllable is pronounced as "line," with a short "i" sound as in "bin." The silent "e" at the end simply serves to indicate that the "i" sound is pronounced as a long vowel sound.
