What does the root word sen mean?

The root word "sen" doesn't have a clear, universal meaning on its own. It's often part of a larger word, and its meaning depends on the context. Here are some possibilities:

Latin:

* sen- can be a root meaning "old" or "aging." For example:

* senile: showing the weakness or decline of old age

* senior: older in age or rank

Other origins:

* sen- can be a root meaning "feeling" or "sensation" in words of French origin. For example:

* sensational: causing great surprise or excitement

* sense: a faculty by which a person or animal perceives stimuli

Specific words:

* Senses: the ability to perceive things through sight, hearing, smell, taste, and touch.

* Sensible: having or showing good sense or judgment.

To understand the meaning of "sen" in a particular word, you need to consider the whole word and its context.