скрыть, спрятать - hide sth скрытьСЯ, спрятатьСЯ - hide oneself прибрать - it is superfluous in this list. Means "clean up."

"прятать" is the most common. Slightly childish:) It is the most common word, if you ask a Russian 'what Enlgish "hide" means', he would answer 'прятать, прятаться'. "скрыть" is harder to explain... It is preferred in certain contexts, so I can only list some. 1) about absractions to hide information - скрыть. hidden meaning - скрытый смысл. 2) it is literally understood as 'cover from sight', 'hide from view'. So солнце скрылось за тучами (you can say 'спряталось' but that would be a metaphor) машина скрылась за поворотом. скрыть от посторонних взоров. (also укрыть) But the full explanation would be long. For example, when something must be protected/covered from exposure to something e.g. light (not from view), both прятать and укрыть may work. But not 'скрыть' - this one imlies an Observer. 3) also in various 'elevated' meanings, when you speak of something mystical, mythical, religious. Here it is 'evelated' style for 'hide'. It has even more elevated variant сокрыть which preserves the vowel after с- (likely under Church Slavonic influence). "прибрать" as applied to an object is not really common now and here. You may find it in literature and may be in regions (other than mine, that is, Moscow). As you see it differs from убрать in its prefix (which changes style/shades). But basically it is wiktionary, put away: To place out of the way, clean up. Please put away the tools when you are finished. I put the clothes away so as to neaten the room. It may also imply 'put away with the purpose of hiding'... according to the dictionary. People around me just don't use it this way, so I can't be sure:( as