1 and healthy English pronunciation is [hel θ]; The American pronunciation is [helθ].
As a noun, it means health; Medical care.
2.healthy's English pronunciation is ['hel θ I]; The American pronunciation is ['helθi].
Being an adjective means health.
Second, the usage is different.
1, health
(noun)
1) The basic meaning of health can refer to both physical health and mental health, and it is an uncountable noun.
2) Health can sometimes be used as a greeting, meaning "I wish someone health", an uncountable noun or a countable noun.
2. Health
(adjective)
1)healthy as an adjective basically means "healthy and strong", which means that people are in good physical and mental condition and rarely get sick. Extension can be interpreted as "(things) flourish and develop well."
2) Health cannot be used to express temporary health, but refers to a long-term state or process.
Third, the lexical collocation is different.
1, health
Affect sb.' s health affect sb.' s health.
Damage someone's health.
Drink to sb.' s health
2. Health
1) Feel healthy.
2) grow up healthily and thrive.
3) Looking healthy seems to be in good health.