| Term | Definition |
| acrophobia | abnormal fear of being in high places |
| audiophile | one especially interested in high-fidelity sound |
| balletomania | extreme enthusiasm for the ballet |
| bibliomania | craze for acquiring books, especially rare ones |
| bibliophile | lover of books |
| bibliophobia | strong dislike of books |
| claustrophobia | dread of being in closed of narrow spaces |
| dipsomaniac | person with an uncontrollable craving for alcoholic beverages |
| germanophobe | person who intensely fears or dislikes Germany or the Germans |
| kleptomaniac | one who has a persistent neurotic impulse to steal, though not in need |
| mania | exaggerated enthusiasm, craze: mad impulse |
| megalomania | mental disorder characterized by fantasies of grandeur, power, wealth |
| monomania | derangement of the mind on one subject only |
| phobia | abnormal and persistent fear, dislike, or hatred |
| photophilic | light loving; requiring abundant light |
| photophobia | painful sensitivity to light |
| photophobic | shunning light; light hating |
| pyromaniac | person having an insane impulse to stare fires |
| Russophobia | abnormal dislike of Russia or the russians |
| xenophobia | fear or hatred of foreigners or strangers |
| anglomania | an exaggerated devotion to england or the english |
| hydrophobia | an abnormal fear of water, |
| technophobia | a fear of technology; computer anxiety |
| philatelist | one who loves stamps; a stamp collector |
| philharmonic | loving harmony; devoted to music |
| philodendron | loving trees; a tropical climbing plant that likes the shade of trees |
| philosopher | one who loves and pursues wisdom through reasoning |
| philosophy | the love and pursuit of wisdom through reasoning |