Prefix: "conclude"
* Conclude: To bring something to an end, to decide or determine.
* Conclusion: The end or final part of something.
* Conclusively: In a way that leaves no doubt.
* Conclusive: Proving or demonstrating something definitively.
Suffix: "-clude"
* Exclude: To keep out or leave out.
* Include: To put in or contain.
* Preclude: To prevent or make something impossible.
* Reclude: To shut out or isolate oneself.
* Seclude: To keep separate or apart.
Other words with "clude"
* Interclude: To insert or interrupt.
* Subclude: To include as a part of something else.
* Acclude: To shut in or enclose.
* Conclude: To bring something to an end.
* Eclude: To shut out or exclude.
Note: Some of these words are less common or have specific, technical meanings.