| focal(adjective, private, mental, inner) |
| focal point(noun, center, middle, target) |
| gist(noun, center, middle, target) |
| hotbed(noun, center, middle, target) |
| hush-hush(adjective, show, informal, special, intimate) |
| imprisoned |
| inside of(verb, phrasal verb) |
| insides(noun, interior, gut, contents, innards) |
| intelligence |
| intermediacy(noun, center, middle, target) |
| intestinal(adjective, stomach, interiority) |
| intuitive(adjective, private, mental, inner) |
| kernel(noun, center, middle, target) |
| limited(adjective, secret, private, confidential) |
| lining(noun, heart, core, interior, insides) |
| mainstream(noun, center, middle, target) |
| marrow(noun, center, middle, target) |
| midpoint(noun, center, middle, target) |
| nave(noun, center, middle, target) |
| navel(noun, center, middle, target) |