noun - a player whose role is to stop the opposing team from scoring, especially in football (soccer) or similar sports
noun - an attitude of doubting that something is true or that something will happen; a lack of trust or belief
noun - is the act of asking someone (usually a suspect or witness) many questions to get information about a crime
noun - a portable device used to charge electronic gadgets, such as phones or tablets, when no power outlet is available
verb - to make small adjustments to an engine or other mechanical device to ensure it is working properly and efficiently