TTX Vocabulary

1 Oxford learner's the length of time that something lasts or is able to continue I worked with him over a span of six years. The project must be completed within a specific  time span . Small children have a short  attention span . a study of the entire span of Arab history

Oxford to hear, especially by accident, a conversation in which you are not involved overhear somebody/something We talked quietly so as not to be overheard. I overheard a conversation between two boys on the bus. overhear somebody doing something We overheard them arguing. overhear somebody do something I overheard him say he was going to France.

1. oxford learners a natural object that moves around a larger natural object in space The moon is a satellite of earth.

Wikipedia The surface area of a solid object is a measure of the total area that the surface of the object occupies.

1. oxford learners a large hole in the top of a volcano 2. oxford learners a large hole in the ground caused by the explosion of a bomb or by something large hitting it a meteorite crater

1. oxford learners (specialist) the quantity of material that something contains calculating the mass of a planet a mass of 46.3 kg

1. oxford learners [uncountable] the quality of being dense; the degree to which something is dense [kasafat کثافت / gunjani گُنجانی/ gunjan گھنا پنpan] population density low density forest

oxford learners 1. containing a lot of people, things, plants, etc. with little space between them [ghana گھنا / gunjan گُنجان ] a dense crowd/forest areas of dense population

oxford learners 1. (symbol Ni) a chemical element. Nickel is a hard silver-white metal used in making some types of steel and other alloys. 2. a coin of the US and Canada worth 5 cents [US our Canada ka 5 cents ka sikka]

oxford learners a line that goes around a circle or any other curved shape; the length of this line The earth is almost 25 000 miles in circumference.

The Earth's mean radius is determined as the average distance from the physical center to the surface, based on a large number of samples. ... The Earth is slightly oblate, so its radius in the plane of the equator is a little larger than its radius along the rotational axis. https://whatis.techtarget.com/definition/Earths-mean-radius

oxford learners a unit for measuring distance; 1 000 metres

oxford learners a unit for measuring length. There are 100 centimetres in a metre.

oxford learners [countable] (abbreviation m) a unit for measuring length; a hundred centimeters 

oxford learners 1. a unit for measuring distance equal to 1 609 metres or 1760 yards a 20-mile drive to work  an area of four square miles The nearest bank is about half a mile down the road. The car must have been doing at least 100 miles an hour.

oxford learners a straight line between the center of a circle and any point on its outer edge; the length of this line

oxford learners of the sky or of heaven celestial bodies (= the sun, moon, stars, etc.) celestial light/music آسمانی aasmani / سماوی samawi / آسمان کاaasmaan ka / بہشتی bahishti Earth's moon is the brightest object in our night sky. It appears quite large, but that is only because it is the closest celestial body.