to secure the assigned securities
Assign means allocate, designate, or set.
for example I will assign you to be the class presiden. assign means to hire
To give duties to
Securities lending means the lending of securities from one person to another. People like to sell their borrowed securities quickly for a profit, then purchase their original security at a lower cost.
No. It means that the man is giving her regards.
allocate
depends in regards to what? usually means; to come out.
Appropriate
It means best regards
It means shares of a stock (security).
if you are talking about the use of the word "regards" in letters, it would be "bivracha" (בברכה), which means "with a blessing".
It often means you have a headache. Regards, To Bnum