principal

1 principal /ˈprɪnsəpəl/ adjective
1 principal
/ˈprɪnsəpəl/
adjective
Britannica Dictionary definition of PRINCIPAL
always used before a noun
: most important : chief

— principally

/ˈprɪnsəpəli/ adverb
2 principal /ˈprɪnsəpəl/ noun
plural principals
2 principal
/ˈprɪnsəpəl/
noun
plural principals
Britannica Dictionary definition of PRINCIPAL
[count]
1 
a  US : the person in charge of a public school
b  British : the person in charge of a university or college
2 
: an amount of money that is put in a bank or lent to someone and that can earn interest — usually singular
3 
a  : the main performer in a group of performers
b  : the most important person in a group