 | Prison A hobo sign that either indicates a prison or is a warning to avoid this area- there is a risk of being arrested. |
 | Prison (alternative) A hobo sign that either indicates a prison or is a warning to avoid this area- there is a risk of being arrested. |
 | Probability The probably of an event happening. |
 | Process This represents a process, or step in the flow chart. Text is placed in the process box to explain what action is to take place. |
 | Process (alchemy) When it comes to this symbol, the word "process" can imply a number of different things. |
 | Product The product of a function over a range of values. |
 | Progressive Social Networks of Mexico This is the logo of the Progressive Social Networks Party of Mexico that was formed in 2020. The Progressive Social Networks is a Social Democratic Political Party |
 | Project Mercury Symbol Project Mercury was the first human spaceflight program of the United States, running from 1958 through 1963. An early highlight of the Space Race, its goal was to put a man into Earth orbit and retu… |
 | Projection (alchemy) Projection was the ultimate goal of Western alchemy. Once the Philosopher's stone or powder of projection had been created, the process of projection would be used to transmute a lesser substance int… |
 | Projector Projector |
 | Promethium Dragon Egg Icon used to indicate a Promethium Dragon egg in the game DragonVale. |
 | Proper Subset (also called a strict subset) A proper subset is subset that has few elements than the set, i.e., the subset can not be the original set. |
 | Proper Superset (also called strict superset) A proper superset is a superset that has more elements than a set. |
 | Proportional to Specifies that a value is proportional to another value |
 | Protection Protection |
 | Provable Means a statement is provable |
 | Province Province |
 | ps4 controller |
 | psi Psi is the 23rd letter of the Greek alphabet and has a numeric value of 700. In both Classical and Modern Greek, the letter indicates the combination /ps/ (as in English word "lapse") |
 | Psi Psi is the 23rd letter of the Greek alphabet and has a numeric value of 700. In both Classical and Modern Greek, the letter indicates the combination /ps/ (as in English word "lapse"). For Greek lo… |
 | Psychiatry - Psychology Psi (uppercase Ψ, lowercase ψ; Greek |
 | Psychodrama A form of psychotherapy in which patients act out events from their past. |
 | Public health center Japanese map symbol for public health center |
 | Pulverize (alchemy) An 18th century chemical symbol used to indicate the process of pulverizing ("pulverisare") and the result of that process, powder ("pulvis") |
 | Purification (alchemy) The sign for purification, or "purificatio", combines the symbols for 'water' (squiggly lines) and 'vessal' (bowl shape). |
