Meaning:
1st-class mail 
n.
mail that includes letters and postcards and packages sealed against inspection
il Idiom, Proverb
a bitter pill
a negative event, a loss, a painful experience Divorce is a bitter pill for her. She believed in her marriage.
a clean bill of health
a good report from the doctor, a good checkup You'll never get a clean bill of health if you eat fat meat!
a dildo
a manufactured penis, a vibrator shaped like a penis """When Ed's away I use a dildo."""
a fill-up
a full tank of gasoline, fill her up We got a fill-up before we left Winnipeg. The truck needed gas.
a hill of beans
a small amount, very little The money he lost doesn't amount to a hill of beans.
a holy pile
a lot, very much, tons To feed 20 people, you need a holy pile of spaghetti.
a lady-killer
"handsome man; a man who charms the ladies; hunk" """Liam Neeson! He's gorgeous!"" she said. ""What a lady-killer!"""
a nail-biter
"exciting game or movie; having much suspense" Have you seen the movie The Fugitive? It's a nail-biter.
a paper trail
a series of memos or letters that record events A business merger leaves a long paper trail - many documents.
a piece of tail
(See a piece of ass)
a sick building
a building with polluted air or insufficient oxygen This is a sick building. The air contains toxic fumes.
a silver spoon...
(See born with a silver spoon in his mouth)
a wild goose chase
a waste of time, a long chase without results Oil exploration is sometimes a wild goose chase. It's uncertain.
Achilles' heel
a weakness, a vulnerable place Jewelry is my Achilles' heel. I buy too much jewelry.
another nail in your coffin
"another cigarette; harmful substance" Every cigarette he smoked was another nail in his coffin.
as slow as a dead snail
unbeatable in slowness He writes as slow as a dead snail, only a word or two per day!
at will
freely, without restraint He shared his feelings, speaking at will about his problems.
bail a company out
help or rescue a company with financial problems The government decided to bail out the failing bank in order to maintain stability in the economy.
bail me out
help me solve a problem, pay to get me out of jail If they arrest me, will you bail me out - pay the bail money?
bail out
quit, leave a project Tom bailed out when Lan became Project Manager.
bail someone or something out
help or rescue The government has decided to bail out the troubled bank.
better the devil you know...
a new devil could be worse than the old devil """Should we fire the coach?"" ""No - better the devil we know than the one we don't."""
between the devil and the deep blue sea
in a difficult position, no place to go, between a rock..., Sophie's choice "If he ran, they would shoot him; if he stayed in the shop, the gas would kill him. He was between the devil and the deep blue sea."
billy dog
(See a billy dog)
bitter pill
(See a bitter pill)
black sheep (of the family)
a person who is a disgrace to a family or group The man is the black sheep in his family and is the only member who has not made a success of his life.
boiling mad
very angry, very upset, hopping mad By the time the car started, Emil was boiling mad.
born with a silver spoon in his mouth
born into a rich family, accustomed to wealth "Jason won't look for a job; he was born with a silver spoon... ."
born with a silver spoon in one
born to wealth and comfort, born rich The student in our history class was born with a silver spoon in his mouth and has never worked in his life.
boys will be boys
"all boys are the same; boys are rough and noisy, a chip off the old..." "When Steve came home with his shirt torn and nose bleeding, his father said, ""Boys will be boys."""
break the silence
talk about a secret, tell people the truth When he accused us of the crime, my brother broke the silence.
bright eyed and bushy tailed
frisky, lively, full of life Perry is bright eyed and bushy tailed tonight. He looks rested.
build a better mousetrap
improve a common product If you're not an inventor, you try to build a better mousetrap.
build up
increase, raise Talking with Rudy will build up your confidence. He's positive.
built like a brick shithouse
have a strong body, have a sturdy build Tyronne plays football. He's built like a brick shithouse.
burn the midnight oil
study/work all night or until very, very late at night.
buzz-kill
a person who stops the fun, party-pooper You buzz-kill! Don't talk about air disasters when I'm flying to Rome.
by a country mile
by a long distance, by a wide margin Black Beauty won the race by a country mile. She was far ahead.
can't make heads or tails of something
" can't understand something at all;"
chill out
pause to gain control of your emotions, cool off I think you should chill out before you see the supervisor.
circular file
garbage can or wastebasket, file 13 A lot of memos go in the circular file. They're garbage.
clean bill of health
(See a clean bill of health)
clear sailing
(See smooth sailing)
cooler heads prevailed
sensible people spoke, violence was avoided There was nearly a riot, but cooler heads prevailed.
crocodile tears
a show of sorrow that is not really felt He cried crocodile tears when he discovered that he couldn
cry over spilt milk
cry about small accidents, cry instead of doing Children drop things and break them. Don't cry over spilt milk.
curiosity killed the cat
a very curious person may find trouble or danger Don't ask so many questions. Remenmber, curiosity killed the cat.
day of the family farm
(See the day of the family farm)
dead as a doornail
dead, showing no signs of life, stone dead It's only a stuffed bear. It's dead as a doornail.
devil-may-care
carefree, wild, on a lark Employers won't hire people with a devil-may-care attitude.
An il idiom dictionary is a great resource for writers, students, and anyone looking to expand their vocabulary. It contains a list of words with similar meanings with il, allowing users to choose the best word for their specific context.
Dictionary of similar words, Different wording, Synonyms, Idioms for Idiom, Proverb il