Yes and no.
No because you do not use an accent when you write the word.
Yes because when you write its pronunciation you can write
/ˈäbstəkəl/No, the word "obstacle" is not accented. It is pronounced as "AHB-stuh-kuhl."
The first syllable, "cham," is accented in the word "chamber."
The accented syllable in the word "thousands" is "sand."
The accented syllable in the word "above" is "a-" as in "a-bove".
The accented syllable of the word "arteriosclerosis" is "scler."
The accented syllable in the word "arteriolitis" is "te".
Yes the word common has an accented syllable. Common is accented on the first syllable.
Certain . First accented syllable.
The first.
The word merchant is a second accented syllable word.
In the word coldest, the first syllable, cold, is accented.
Eastern is accented on the first syllable.
Verdict is accented on the first syllable.
The last syllable is accented.
The first syllable is accented.
The first syllable is accented.
The syllable in the word "humidity" that is accented is "hu-MID-i-ty" with the stress on the second syllable.
The second syllable is accented.