|keep at||Persevere.||His father encouraged him to keep at his studies.|
|keep back||Retain / force to stay back||A barrier was installed to keep back the fans.|
|keep on||Continue doing something||I told him to be quiet but he kept on making noise.|
|keep up with||Stay at the same level as someone or something||Bill walks so fast it’s difficult to keep up with him.|
|kneel down||Go down on your knees||Most people kneel down to pray.|
|kick off||Begin, start||The football match kicked off at 3 p.m.|
|knock back||Drink quickly (usually alcohol)||He knocked back a pint of beer and left.|
|knock down||Strike someone or something to the ground.||The child was knocked down by a car.
The tree was knocked down during the storm
|knock out||Cause someone to fall unconscious.||The boxer was knocked out in the first round.|
|know of||have heard of / have knowledge about||Do you know of anyone else attending the conference?|
|laugh off||Make light of something / minimize||He laughed off the unflattering review of his latest book.|
|lay off||Fire, dismiss, let go||Many factories have had to lay off workers.|
|leaf through||Turn over pages quickly||She leafed through a magazine in the waiting room.|
|leak out||Become known (information)||News of the planned merger leaked out.|
|leave out||Omit / not mention||Tom’s name was left out of the report.|
|let down||1) Disappoint
2) Lengthen (skirt, pants)
|1) You promised to come to the party, so don’t let
2) The skirt is too short? I’ll let it down for you.
|light up||Illuminate||1) 1 watched the floodlights light up the castle.
2) Her face always lights up when she sees her grandson.
3) The screen lights up when you turn on a computer.
|line up||Stand in a row.||The books were lined up neatly on the shelves.|
|live through||Experience something and survive||My grandparents lived through two wars.|
|liven up||Make something livelier or more attractive.||We need to liven up the presentation somehow.|
|log in/on||Access a program or database using a password.||You need to log in to your account before you use the services.|
|log off||End access to a database.||Log off the system and then turn off the computer.|
|look after||Take care of||A baby sitter looks after the children when their parents go out.|
|look ahead||Think of the future||It’s time to forget the past and look ahead.|
|look away||Turn your head away so as not to see||The scene was so horrible that I had to look away.|
|look back on||Remember the past||My parents and their friends like to look back on “the good old days”.|
|look down on||Consider as inferior||He tends to look down on anyone who is not successful.|
|look for||Try to find something||Jane went shopping to look for a pair of shoes.|
|look forward to||Await or anticipate with pleasure||I look forward to seeing you soon.|
|look into||Examine or investigate.||I’ll look into the matter and call you back.|
|look on||Be a spectator at an event||Billy didn’t take part in the fight. He just looked on.|
|look out||Be careful/pay attention||Look out! There’s a car coming.|
|look through||examine, usually quickly||I’ll look through my mail to see if I can find your message.|
|look up to||Admire||He was a wonderful teacher and many students looked up to him.|
|lose out||Be unsuccessful / suffer a loss||I’m the one who’ll lose out if our plan goes wrong.|
|lose out on||miss or be deprived of something||Because I left before the end of the year I lost out on the annual bonus.
I watched the documentary until the end so as not to lose out on anything.
|lose out to||be less successful||Jose was called for an interview but he lost out to the candidate who spoke fluent English.|