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prospect something that is expected or very likely to happen. [4 definitions]
prospector a person who prospects, or searches, for precious minerals and metals.
prosper to be successful or have good luck; thrive.
prosperity the state of being wealthy and successful.
prosperous having wealth, success, or good fortune.
protect to defend or keep safe; shield from danger or harm.
protection the act of keeping something safe from harm or the condition of being protected. [2 definitions]
protective protecting or made to protect.
protein a substance that is made up of nitrogen, carbon, oxygen, hydrogen, and possibly other elements. Proteins are found in all living things and are a necessary part of life processes.
protest an objection or complaint. [3 definitions]
Protestant a Christian who belongs to a church other than the Catholic Church or an Eastern Orthodox church.
proton a tiny particle in the nucleus of an atom. A proton has a positive electrical charge.
protoplasm a substance that is like a jelly and is a necessary part of plant and animal cells.
protozoan a tiny living thing that is similar to an animal but has only one cell or lives as a colony of single cells. Protozoans include amoebas and paramecia.
protrude to push or stick out.
proud feeling pleased, satisfied, and worthy because of something one owns or has done. [3 definitions]
prove to show to be true or correct. [3 definitions]
proven a past participle of prove.
proverb a short, often-used saying that expresses something wise or true.
provide to give what is needed; supply. [4 definitions]
provided on the condition that; only if.