Word: breakthrough
Part of speech: Noun
Syllables: break
through
Definition: The penetration of a separating wall or the remaining distance to an adjacent hollow (a crosscut in mining) or between two parts of a tunnel build from both ends; knockthrough.
Morphemes:
Affix: break
Language: en
PoS: Noun
Meaning: A physical space that opens up in something or between two things.
Affix: through
Language: en
PoS: Noun
Meaning: A large slab of stone laid in a dry-stone wall from one side to the other; a perpend.