morphology vs syllable structure

morphology and syllable structure both are nouns.

Word	Noun	Adjective	Verb	Adverb
morphology	Yes	No	No	No
syllable structure	Yes	No	No	No

As nouns, morphology and syllable structure are synonyms defined as:

morphology and syllable structure: the admissible arrangement of sounds in words

Other synonyms of morphology include sound structure, word structure.

morphology (noun)	syllable structure (noun)
the branch of biology that deals with the structure of animals and plants	the admissible arrangement of sounds in words
studies of the rules for forming admissible words
the admissible arrangement of sounds in words
the branch of geology that studies the characteristics and configuration and evolution of rocks and land forms