| A | B |
| Midcontinent | Located in the center of a land mass. |
| Submerge | To place under water; cover from view; obscure. |
| Circumlocution | The use of unnecessarily wordy and indirect language; evasion in speaking or writing. |
| Intervention | The act of coming between to modify, settle, or hinder some action. |
| Substandard | Failing to meet a criterion or requirement. |
| Circumstance | Condition or fact attending an event and having some bearing on it; a determing or modifying factor. |
| Intersperse | To distribute among other things at intervals. |
| Interact | To act upon one another. |
| Subconscious | Part of the mind below the level of awareness. |
| Midlife | Located in the middle of one's lifetime. |