Wiktionary
vb. (context transitive English) To emit.
WordNet
Usage examples of "give off".
One knows when these alien menaces are in the vicinity because of the high keen sound they give off.
In politics we have black holes, pulsars, things that give off more heat than light.
This theory supposes the amulets to give off vapours or effluvia which penetrate into the body and effect a cure.
Indeed, only where it struck steel or a steel alloy did the neutrons create a long-term radiation hazard, by making the metal itself give off gamma radiation.
Most crop-eaters left Earth plants alone, especially if the fields were bordered with spearmints and marigolds to give off odors that even Earth insects detested.
Moreover, the decomposition reactions that take place immediately after death give off heat”.
In addition to all that, they are loud, dangerous and give off large quantities of ozone which can damage the operators lungs.
They nourish themselves on the food we provide, too, and give off waste products.
Rick had put marshmallows in it, and whipped cream, and just enough cinnamon to give off a delicious scent.
It didn't give off much light, but it was enough to see him clearly.
It had no elegant look, no sense of symmetry, nor did it give off the sensation of brute force, although it certainly had that.
In thermonuclear fusion, the nuclei of light atoms such as hydrogen isotopes are forced together to create heavier nuclei and give off energy.