| Answer | Crossword Clue |
|---|---|
| EXO | Outside of [prefix] |
| EXO | Outside of (prefix) |
| EXTRO | Outside of: Prefix. |
| ECT | Outside: prefix |
| ECT | Outside (prefix) |
| ECTO | Outside (prefix) |
| EXO | Outside: prefix |
| EXO | Outside: Prefix |
| EXO | Outside: Prefix. |
| EXTRA | Outside: Prefix. |
| ECT | Outside: Prefix. |
| EPI | Outside: Prefix. |
| ECTO | Outside: Prefix. |
| ECT | Outside: Prefix |
| ECTO | Outside: Prefix |
| EXTRO | Outside: Prefix |
| ECT | Prefix meaning "outside" |
| ECTO | Prefix meaning "outside" |
| EXO | Prefix meaning "outside" |
| EPI | On the outside: Prefix. |
| EPI | On the outside: Prefix |
| ECT | Prefix for outside, etc. |
| ECTO | "Outside" prefix used in "Ghostbusters" |
