2lost 
/ˈlɑ:st/ adjective
/ˈlɑ:st/ adjective 1 : unable to be found
▪ He was looking for his lost keys. ▪ lost baggage/luggage ▪ Many have tried to find the ruins of the lost city. — see also long-lost 2 : not knowing where you are or how to get to where you want to go : unable to find your way
▪ The child was lost. ▪ We took a wrong turn and got lost. ▪ a lost puppy ▪ Hold my hand. I don't want you to get lost. 3 a : no longer held, owned, or possessed
▪ He has been trying to recapture his lost youth. ▪ She's been lagging at the polls, but hopes to recover/recoup lost ground with tonight's debate. [=she hopes to gain again support she had lost]
b : no longer known
▪ a lost civilization ▪ It's a lost art. ▪ The original music is lost to us forever.
c : no longer available
▪ a lost opportunity/chance [=an opportunity that was not used] ▪ The strike has cost the company millions in lost sales/earnings/revenue. [=sales/earnings/revenue that the company would have had if the strike had not happened] ▪ We need to work faster to make up for lost time. [=we need to work faster because we did not get enough of the work done before now] 4 a : not won
▪ a lost battle : not possible to win ▪ The game was irretrievably/hopelessly lost by the end of the first half.
b : not capable of succeeding
▪ Finishing the project on time seemed like a lost cause. [=finishing the project on time seemed impossible] 5 a not used before a noun [more lost; most lost] : lacking confidence and feeling unsure of what to do
▪ When she first moved to the city she felt a bit lost and out of her depth. ▪ I don't know how I ever managed without my computer: I'd be totally lost without it! ▪ I depend on her for everything. I'd be lost without her.
b : very unhappy
▪ a lost soul [=a lonely and unhappy person] 6 not used before a noun : so interested in something that you do not notice other things
▪ When he's reading a book he's lost to the world. — often + in ▪ He was lost in his book. ▪ She was lost in thought. [=she was thinking about something and not noticing the people and things around her] ▪ He seems to be lost in a world of his own. ▪ lost in (a) reverie
▪ He was looking for his lost keys. ▪ lost baggage/luggage ▪ Many have tried to find the ruins of the lost city. — see also long-lost
▪ The child was lost. ▪ We took a wrong turn and got lost. ▪ a lost puppy ▪ Hold my hand. I don't want you to get lost.
▪ He has been trying to recapture his lost youth. ▪ She's been lagging at the polls, but hopes to recover/recoup lost ground with tonight's debate. [=she hopes to gain again support she had lost]
b : no longer known
▪ a lost civilization ▪ It's a lost art. ▪ The original music is lost to us forever.
c : no longer available
▪ a lost opportunity/chance [=an opportunity that was not used] ▪ The strike has cost the company millions in lost sales/earnings/revenue. [=sales/earnings/revenue that the company would have had if the strike had not happened] ▪ We need to work faster to make up for lost time. [=we need to work faster because we did not get enough of the work done before now]
▪ a lost battle : not possible to win ▪ The game was irretrievably/hopelessly lost by the end of the first half.
b : not capable of succeeding
▪ Finishing the project on time seemed like a lost cause. [=finishing the project on time seemed impossible]
▪ When she first moved to the city she felt a bit lost and out of her depth. ▪ I don't know how I ever managed without my computer: I'd be totally lost without it! ▪ I depend on her for everything. I'd be lost without her.
b : very unhappy
▪ a lost soul [=a lonely and unhappy person]
▪ When he's reading a book he's lost to the world. — often + in ▪ He was lost in his book. ▪ She was lost in thought. [=she was thinking about something and not noticing the people and things around her] ▪ He seems to be lost in a world of his own. ▪ lost in (a) reverie
get lost
informal : to go away : leave — used in speech as a rude or angry way to tell someone to go away — see also 2lost 2 (above)
give someone up for lost
: to decide that someone cannot be helped or saved
▪ He was desperately ill, and most of the doctors had given him up for lost. [=most of the doctors said that he would die]
▪ He was desperately ill, and most of the doctors had given him up for lost. [=most of the doctors said that he would die]
he who hesitates is lost — see hesitate
lost for words
chiefly Brit : unable to think of anything to say
▪ I was so surprised to see her that I was lost for words. [=(chiefly US) at a loss for words]
▪ I was so surprised to see her that I was lost for words. [=(chiefly US) at a loss for words]
lost in the shuffle — see 2shuffle
lost on
: not appreciated or understood by (someone)
▪ The jokes were lost on me. [=I didn't understand the jokes] ▪ The meaning of her remark wasn't lost on him. ▪ The message was lost on those for whom it was intended.
▪ The jokes were lost on me. [=I didn't understand the jokes] ▪ The meaning of her remark wasn't lost on him. ▪ The message was lost on those for whom it was intended.
no love lost, very little love lost — see 1love
