"certificate" - key terms from Wikipedia

airman certificate
airworthiness certificate
birth certificate
certificate
certificate	authority
certificate	examination
certificate	in applied management
certificate	of allodial title
certificate	of approval
certificate	of deposit
certificate	of education
certificate	of merit
certificate	of title
certificate	programs
class a certificate	holder
class medical certificate
client certificate
death certificate
degree and certificate	programs
digital certificate
election certificate
ev certificate
firearm certificate
general certificate	of secondary education
gift certificate
gold certificate
higher school certificate
insurance certificate
junior certificate
junior certificate	examination
leaving certificate
leaving certificate	vocational programme
marriage certificate
medical certificate
medical certificate	and parental authorization
national certificate
original birth certificate
pilot certificate
root certificate
school certificate
school leaving certificate
silver certificate
sport pilot certificate
ssl certificate
stock certificate
student pilot certificate
tax clearance certificate
third class medical certificate
type certificate
used for degree and certificate