Three homophones: rain, rein, reign

I'm writing about these homophones because of an email announcement:  "I will be taking over the ... reigns ..."  Oh, is he becoming royalty?  No, but I hope he finds a good editor.  What he meant to say was that he is taking over the REINS.  He will be guiding this entity, like a rider guides a horse, using reins.

While "rain," "rein," and "reign" sound exactly the same (homophones), their meanings differ completely.  Let's define these three very different words:

• rain = water falling from the sky.
• rein = a strap used to guide a horse.
• reign = the period of time when a monarch rules.

We might say about the first one, "It looks like it will rain today, so take your umbrella."

The second one is used mostly in the plural sense ("take the reins"), meaning to take control of something.  Why?  Beause the leather straps attached to a horse's bit is used by a horse's rider to control and guide it.  A family might say:  "We're low on money until payday, so we need to reign in our spending."

Reign (the third meaning) is the time during which a king or queen rules a country.  As a verb, it means to hold royal power.  It specifically pertains to monarchies, authority, or dominance.  Examples:"Queen Elizabeth II had a remarkably long reign."