ELI5: Explain Like I'm 5

Initial-stress-derived noun

Have you ever heard of the word "photograph"? This word is an example of an initial-stress-derived noun. This means that the first syllable of the word, "photo", is pronounced with more stress or emphasis than the rest of the syllables.

When we create new words in English, we can use different rules to decide where to put the stress. Some words have stress on the second syllable, like "banana". Others have stress on the third syllable, like "banana-na." But initial-stress-derived nouns are special because they always have stress on the first syllable.

Some other examples of initial-stress-derived nouns include "present" (meaning a gift) and "conduct" (meaning behavior). These words are pronounced with more emphasis on the first syllable than on any of the other syllables.

So, to sum it up, an initial-stress-derived noun is a word in English that has stress or emphasis placed on the first syllable. This rule is applied to some new words when they are created in the English language.