A stressed syllable bears the stress, or accent, of the word or phrase. For example in the word syllable, the first syllable syl- is stressed, and the other two syllables, -la- and -ble, are unstressed.
The ictus (stressed syllable) in English doesn't normally have a function - it is just an arbitrary historical feature of the language.
Very occasionally a change in ictus will alter the meaning of a word:
You can conVERSE with someone (hold a dialogue with them) but their opinions might be the CONverse (opposite) of yours.
And sometimes ictus can alter the meaning of a sentence (though usually only in speech, not written down).
(See the link).
But situations where ictus matters are unusual, normally it is just an adventitious feature of language.
If you are talking abut the noun of the sentence then it is the "sub." If it is to rule over something then it is the "ject."
The SUBject of the sentence is a noun.
Don't subJECT him to criticism.
Stress Syllable- is a stress syllable
The stress mark of the word "subject" is on the first syllable, so it is pronounced as SUB-ject.
Footprint is stressed on the first syllable.
The second syllable (-ta-) is the stressed syllable in potato.
The stressed syllable in the word "contentment" is the second syllable, "tent."
No, "rejoiced" is not a word with a stressed syllable. The stress falls on the second syllable, "joiced."
Behave is stressed on the second syllable.
Tomorrow has a stressed first syllable ("to-") and an unstressed second syllable ("-morrow").
Yes the word orphan has a stressed syllable. Orphan is stressed on the first syllable.
Yes, "deliver" is stressed on the second syllable: de-LIV-er.
Yes the word language has a stressed syllable. Language is stressed on the first syllable.
Yes the word trophy has a stressed syllable. Trophy is stressed on the first syllable.
It is not entirely clear whether you are asking which syllable is stressed or what the first syllable is. The stressed syllable is the first syllable: sev.