[A.J.Armitage]

By the way, you consulted a thesaurus, not a dictionary

Here's the reference in question.

Note, please, the heading, which for ease of reading I will reproduce below:

Find It! First, Fast and Free!
English Dictionary - With Multi-Lingual Search

Note also the presence of a definition and the absence of synonyms.

Now this leads us to a question: should you keep posting in the hope of eventually getting something right, or should you just stop digging? (Yes, I am aware that you probably aren't holding a shovel right not. It's those idioms again.)

but don't let the "English as a second language" kid correct you on the use of OUR language.

I wasn't planning on it, but thanks for the admonition.

You may recall that I corrected your misapprehension of Keyes' usage.

[Luis Gonzalez]

"Your Query of 'err on the side of something' Resulted in 1 Matches"

You consulted a dictionary on an entire phrase?

dic·tion·ar·y Listen: [ dksh-nr ]
n. pl. dic·tion·ar·ies

1. A reference book containing an alphabetical list of words, with information given for each word, usually including meaning, pronunciation, and etymology.
   
2. A book listing the words of a language with translations into another language.
   
3. A book listing words or other linguistic items in a particular category or subject with specialized information about them: a medical dictionary.
   
4. Computer Science a. A list of words stored in machine-readable form for reference, as by spelling-checking software. b. An electronic spelling checker.

A dictionary defines words, not phrases...see, now you can walk away knowing that you learned something new tonight.

No charge.