There are many such English words. Affect, content, detail, perfume, permit etc, are nouns when accented on the first, and verbs when accented on the second syllable. If there is name for this kind of word, I do not know it.
No, allow is stressed on the second syllable.
Yes, the second syllable in "boundary" is stressed. The stress falls on the "dar" syllable.
Deliver is stressed on the second syllable.
The first syllable in stressed is stress. The second one is -sed.
However is stressed on the second syllable. (hou-ev-er)
Enemy is stressed on the first syllable.
No, the stress is on the first syllable. ROW-dee.
No. The first syllable is stressed. It's OR-phan, not or-PHAN.
No, "memory" is not stressed on the first syllable. The stress falls on the second syllable: MEM-uh-ree.
Important is stressed on the second syllable.
Encounter is stressed on the second syllable.
Yes, language is stressed on the first syllable.