(adj., informal) sarcastic or satirically witty, cynically and ironically sarcastic, a personality with such characteristics.
I've been called nice, but I'm the snarkiest of all my friends.

adj, maliciously derogatory and superior, sarcastic
There's no need for that snide remark just because of our disagreement.

vb (tr)
1. Archaic — to compose or write, as a poem
2. Obsolete — to dictate
3. Obsolete — to prescribe

After a ball, Miss Austen might sit down to indite an adventure based on her observations of human nature.

adj, derogatory
making a show of being morally superior to other people
After the Catholic priest was arrested on charges of abusing his children, people could be heard saying, "What happened to all the sanctimonious talk about putting his family first?"

adj, informal
of, associated with, or fond of the outdoors
The pink in his cheeks added to his outdoorsy appearance.

verb (intr), Chiefly British
to rappel
from German abseilen, ab— "down" and Seil— "rope"

He had to abseil 50 metres to enter the cave system.

(informal)
a derogatory term for an old woman, often used by youth under their breath after being scolded
She told me to quit cutting through her yard or she'd call the cops — the old biddy.

the loose flap of skin under the neck of some birds, lizards and older people
A colorful wattle, though attractive in some male birds and lizards, is not thought to be so in female humans.

to waste time, spend time aimlessly, to squander or use triflingly.
I can't get motivated today. It's already 10:00 am and I've been piddling around since 7:00 am.

A word used to express frustration or incredulity, nonsense
There is no time to read today.Fiddlesticks! One should read every day.

Nonsense, rubbish
Used as an expression of frustration.

I just locked myself out of the house. Piffle!