Word: busiest
Part of speech: Adjective
Syllables: bus
i
est
Definition: Alternative form of busy; unavailable for use by anyone else or indicating unavailability; (`engaged' is a British term for a busy telephone line)
Morphemes:
Affix: busy
Language: en
PoS: Adjective
Meaning: Engaged in activity or by someone else.
Affix: -est
Language: en
PoS: Suffix
Meaning: Used to form the superlative of adjectives and adverbs.