Sneak

Sneak
to go or do something secretly, or take someone or something somewhere secretly 
He sneaked out of the house, going out through the back way.
 I sneaked a look at my watch.
 Make sure you sneak a little bit of protein into your snacks. 
 He snuck out of the budget meeting and went back to the lab.

Regain

Regain
to get something back again:

I had to move out to regain my sanity.

Boisterous

noisy and not controlled:

The audience burst into boisterous laughter.

Fanciful

not realistic

fanciful ideas/notions

Acquaintance

a person that you have met but do not know well

a business acquaintance

 

formal used in some expressions about knowing or meeting people

It was at the Taylors' party that I first made his acquaintance (= first met him).

I wasn't sure about Darryl when I first met her, but on further acquaintance (= knowing her a little more) I rather like her.

 

formal knowledge of a subject

Sadly, my acquaintance with Spanish literature is rather limited.

 

 

 

 

 

 

Provision

something that is needed or wanted, or the act of considering the need for something and arranging for it:

› Provisions are also supplies of food and other necessary items:

 Provisions had to be flown in by helicopter

 When designing buildings in California, you have to make some provision for earthquakes.

 Ample provisions for aircraft stability have been made.

Nuisance

Nuisance
something or someone that annoys you or causes trouble for you.

It’s a nuisance filling out all these forms.