A
to lower in value or price
depreciate
the lead sound of musical key
keynote
harsh, bitter, ridicule
sarcasm
to disturb greatly
Perturb
to add as an extra part
Append
to produce a Mark or pattern on a surface
imprint
to pay off or settle
liquidate
the income of a government
Revenue
a proposal or an offer
Overture
to stop
cease
the beginning instruction
initiation
devoted to study
studious
to turn in and receive something in exchange
redeem
the interval of eight degrees between two musical tones
octave
to force
constrain
fear; great uncertainty
Trepidation
to powerfully hold one’s attention
captivate
to stop by force
quell
to enroll as a student in a college or university
matriculate
an occupation or a profession; calling
Vocation
a list or set of marks to keep count
tally
to laugh at or mock
Scoff
useful
practical
a person who pleads another's case
Advocate
with skill
Deftly