Sonar vs. Fortify — What's the Difference?

Sonar (sound navigation and ranging) is a technique that uses sound propagation (usually underwater, as in submarine navigation) to navigate, communicate with or detect objects on or under the surface of the water, such as other vessels. Two types of technology share the name "sonar": passive sonar is essentially listening for the sound made by vessels; active sonar is emitting pulses of sounds and listening for echoes.

To strengthen and secure (a position) with fortifications.

A system using transmitted and reflected underwater sound waves to detect and locate submerged objects or measure the distance to the floor of a body of water.

To reinforce by adding material

An apparatus, as one in a submarine, using sonar.

To impart physical strength or endurance to; invigorate

Echolocation.

To give emotional, moral, or mental strength to; encourage

(nautical) echolocation

To enrich (food, for example), as by adding vitamins.

(nautical) A device that uses hydrophones (in the same manner as radar) to locate objects underwater.

To build fortifications.

A measuring instrument that sends out an acoustic pulse in water and measures distances in terms of the time for the echo of the pulse to return; sonar is an acronym for sound navigation ranging; asdic is an acronym for anti-submarine detection investigation committee

(military) To increase the defenses of; to strengthen and secure by military works; to render defensible against an attack by hostile forces.

(figurative) To impart strength or vigor to.

(wine) To add spirits to wine to increase the alcohol content.

(food) To increase the nutritional value of food by adding ingredients.

To add strength to; to strengthen; to confirm; to furnish with power to resist attack.

To strengthen and secure by forts or batteries, or by surrounding with a wall or ditch or other military works; to render defensible against an attack by hostile forces.

To raise defensive works.

Make strong or stronger;

Enclose by or as if by a fortification

Prepare oneself for a military confrontation;

Add nutrients to;

Add alcohol beverages