Bullish og Bearish
Whether an instrument or a shareholder is "bullish" means that the person believes that the underlying instrument will increase in value. For example, if someone says they are "bullish on gold", then it is believed that they believe that the price of gold will rise. There are also "bullish patterns" and "bullish setups". These are patterns and "setups" that have historically been shown to yield returns in the underlying instrument after they have emerged.
Conversely, you then have "brearish" which is exactly the opposite of "bullish"