1) Behind a firewall 2) Carefully 3) Firmly 4) How to moor a boat 5) In a manner free from danger 6) In a safe manner 7) In a secure manner 8) In an invulnerable manner 9) Safe and sound 1) Fast 2) Firmly 3) Strongly 4) Tightly 
• (adv.) In a secure manner; without fear or apprehension; without danger; safely.
Se·cure'ly adverb In a secure manner; without fear or apprehension; without danger; safely. « His daring foe . . . securely him defied.» Milton. 
[adv] - in a confident and unselfconscious manner 2. [adv] - in a manner free from fear or risk 3. [adv] - in an invulnerable manner 4. [adv] - in a secure manner
securely 1. In a secure manner; such as, in a manner free from danger: 'The mother held the child securely.' 2. In a confident and unselfconscious manner: 'She acts very securely in front of the camera.' 3. In a manner free from fear or risk. 4. In an invulnerable manner; 'the agreed line was to involve at several points the withdrawal of the mil...
adverb in a secure manner; in a manner free from danger; `she held the child securely`