secure

1 secure /sɪˈkjɚ/ adjective
securer; securest
1 secure
/sɪˈkjɚ/
adjective
securer; securest
Britannica Dictionary definition of SECURE
[or more secure; most secure]
1 
a  : protected from danger or harm
b  : providing protection from danger or harm
c  : guarded so that no one can enter or leave without approval
2 
: feeling safe and free from worries or doubt : confident
— opposite insecure
3 
a  : firmly attached
b  : in a firm position that prevents unwanted movement
c  : not in danger of being lost or taken away
4 
: known only to certain people
2 secure /sɪˈkjɚ/ verb
secures; secured; securing
2 secure
/sɪˈkjɚ/
verb
secures; secured; securing
Britannica Dictionary definition of SECURE
[+ object] somewhat formal
1 
a  : to make (something) safe by guarding or protecting it
b  : to put (something) in a place or position so that it will not move
2 
: to make (something) certain
3 
: to guarantee that (an amount owed) will be paid usually by offering your property if you cannot pay
4 
: to get (something) by using effort : obtain