| center(noun, adjective, place, mean, point) |
| in-house(adjective, inside, central, inner, internal) |
| intestinal(adjective, stomach, inward, interiority) |
| personal(adjective, individual, essential, secret, private) |
| midland |
| bosom(noun, heart, core, center, middle) |
| constitutional(adjective, inside, inner, internal, within) |
| deep(noun, adjective, hold, intimate, secret) |
| hidden(adjective, private, mental, inner) |
| individual(adjective, private, mental, inner) |
| innards(noun, heart, core, center, guts) |
| intramural(adjective, inside, inner, internal, within) |
| midmost(adjective, important, significant, main, middle) |
| midway(adjective, mean, important, significant, main) |
| privy(adjective, intimate, secret, private, penetrating) |
| belly(noun, heart, core, center, guts) |
| civil(adjective, community, public, civic, political) |
| focal(adjective, private, mental, central, inner) |
| heartland(noun, heart, core, center, inside) |
| in-depth(adjective, intimate, secret, private, penetrating) |