Sphere (noun) کرہ، حلقہ، گولا

a spherical object; a ball or globe.
Example: “the markers on the route included two conspicuous black spheres”
Precaution (noun) محافظ، پہلے سے محتاط، خبر گیری

a measure taken in advance to prevent something dangerous, unpleasant, or inconvenient from happening.
Example: “he had taken the precaution of seeking legal advice”