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Instrument Flight Rules

The Instrument Flight Rules (IFR) are a set of rules for flights where it can not be assumed that pilots will be able to navigate their aircraft or maintain separation from obstacles, terrain, and other aircraft by reference to features outside the cockpit.

All flights which take place in Instrument Meteorological Conditions (IMC) must be conducted in accordance with the Instrument Flight Rules (IFR). However, flight under the Instrument Flight Rules (IFR) may also be conducted under Visual Meteorological Conditions (VMC).
Looks like the weather forecast is predicting IMC over the airfield tomorrow. We better change our flight plan from VFR to IFR for tomorrow's flight.
IFR by AircraftAndStuff September 4, 2016
Words you can keep
an aviation term for Instrument Flight Rules. it describes a cloudy or foggy day.
The airport i had intended to go to was reporting IFR, with ceilings of 300 ft overcast
IFR by dflyboy June 25, 2005
Related Words
Ifrah iFraud ifrit Ifra Ifraah ifraa ifrazemic iFriend IFR ifrad

IFR, YFP 

I'm fucking rich, You're fucking poor
I'm fucking rich, You're fucking poor, IFR, YFP
IFR, YFP by Kasper696969 February 5, 2019
iframes is short for invincibility frames. In some video games, after taking damage you will be immune to damage for a short period of time afterward. This period of invincibility is called iframes.
You: How'd you run right over those spikes?
Friend: I had just taken damaged and used my iframes to run through.
iframes by nosam555 July 1, 2021
One of the most spectacular and enticing women you will truly ever meet, people want to be like her, she is the envy of almost every girl. It is impossible not to like this girl, she is bad ass, kind, hilarious, her smile will brighten up your dy no matter fucking WHAT. People are lucky just to meet her and breathe her ir. She is worthy of many things and person of great honor.
Wow, who is THAT girl, I have to meet her!! Whoa, you don't know? That's the one and only Ifrah dude...
Ifrah by ashmcl92 May 1, 2015
Ifra is a very smart girl ,kinda short and has a really aesthetic style, most of the times she’s thriving but also depressed but she’s still one of the coolest people to be around,if she decides to be friends with you consider yourself lucky because she hates a lot of people ,she’s really good at making people laugh with her edgy sense of humour.shes such a wonderful friend 10/10 would recommend
Yeet ifra 🤠✌️
Ifra by Miss steal ya men March 20, 2019
The act of Facebook raping (fraping) via an iphone.
Matt: Fuck! Steve ifraped me!

Steve: Haha do one Matt
ifrape by Andy and Jacque February 18, 2011
More from Urban Dictionary
Acronym, meaning Too Long Didn't Understand
Similar to TLDR
Sister: This meeting was to discuss the rough draft of my essay, where we discussed the subsidiary questions I added in my rough draft. We also discussed the relationship between my main title and the real-life situations I chose to use in my essay. We discussed the structure of my essay as well, specifically the Math AOK section and how it relates to the contradiction of the title. This second meeting was particularly helpful in discussing the implications of my essay claims and how to apply the title across various areas of knowledge. There were many sections of the essay that could have been cut down in wordiness and the ways of knowing required further and more in-depth analysis.

Me: Woah! TLDU!
TLDU by L-Evans January 14, 2019
Word of the Day on August 30, 2026
the act of having anonymous sexual encounters with other men in public toilets.
Cottaging by greeef April 24, 2003
Word of the Day on August 29, 2026

Salad Days 

green inexperienced youthful judgement and cold blooded execution of those judgements.

Rashness with little concern of consequence.

Antony and Cleopatra. William Shakespeare

"My salad days,
When I was green in judgment, cold in blood."

- William Shakespeare, Antony and Cleopatra, 1.5
"How did you end up in jail?"

"Salad days, 'nuf said."
Salad Days by GilbyRFC0 October 7, 2011
Word of the Day on August 28, 2026

age gate 

An absolutely foolproof way to keep minors from viewing content deemed "too mature" for them to watch.
Billy: "So I was trying to watch some videos for an M rated game, and I ran into an age gate, so I put in my real birthday. SOMEHOW it managed to figure out that I am 12. CURSE YOU AGE GATE!!!"

Bill: "Fucking age gate! *quick scroll* THERE! I was born on January 1, 1904. Fuck you age gate."
age gate by Banja January 7, 2011
Word of the Day on August 27, 2026

board chow 

A)
The Crud that collects under the keys in a keyboard. Usually more severe in the keyboards of programmers and webmasters as they tend to spend a lot of time at the the computer and thus eat at their desk. Mainly affecting IBM Model M (clicly) style boards.

B)
Can also be used to gross out Non-Techie people
A)
Bill: want to go to the club?
Bob: No, I've got to clean out my board chow, keys are starting to stick.

B)
Bill: Want to go out to get a bite?
Bob: No, i am just going to have some of my board chow/
Bill: Whats' that?
Bob: The food scraps that collect in my keyboard; Want some?
Bill: *GAG* *HURL* *GAG*
board chow by BinaryHackerMan September 3, 2007
Word of the Day on August 26, 2026
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