sphere of liquid enclosing gas. Small balls of air inside of a liquid. (of liquid) contain bubbles.

used to emphasize accuracy of figure or description.

extending or moving uniformly in one direction only. in straight line. part of something that is not curved.

rowing or sailing in boats as sport or form of recreation. To travel on a lake or river.

round part of eye of vertebrate, within eyelids and socket. look or stare at closely.

scraping implement with rubber-edged blade set on handle. clean or scrape with squeegee.

place or angle where two sides or edges meet. Places where two lines, sides, corners etc. meet. To force into a position impossible to escape from.

A letter of recommendation, e.g. for a job. To cite a piece of research in speech or writing.

more distant in space. A greater distance; at a more distant point. (Used to introduce an additional point); also. To help to happen or develop; promote.

polluting or poisonous substance that makes something impure. Substance that pollutes or causes to be impure.

To go to or in a place for a brief period of time.

To stop something from happening or existing.

Of the top layer; not deep or meaningful. Outside or upper layer of something. rise or come up to surface of water or ground.

event in which people compete. To not accept an official or legal judgment.

Picture that is pressed to copy it onto something. To give someone an illness through contact.