at first glance
at first sight
After a first quick look.
At first sight, his guess was that the whole trouble between the two men resulted from personalities that did not agree.
Tom met Mary at a party, and it was love at first sight.
at sight
on sight
The first time the person or thing is seen; as soon as the person or thing is seen.
First graders learn to read many words on sight.
Mary had seen many pictures of Grandfather, so she knew him on sight.
On demand, on asking the first time.
The money order was payable at sight.
catch sight of
To see suddenly or unexpectedly.
Allan caught sight of a kingbird in a maple tree.
heave in sight
To seem to rise above the horizon at sea and come into sight; come into view; become visible. Usually used of ships.
A ship hove in sight many miles away on the horizon.
know by sight
know someone by sight
This idiom is used when the person has been seen previously but is not known personally.
Знать кого-либо в лицо; быть поверхностно знакомым с кем-либо.
I can't say that I know Lily well, actually I know her by sight only.
Я не могу сказать, что я знаю Лили хорошо, на самом деле я знаю только как она выглядит.
I have never met our new neighbors; I simply know them by sight.
The woman said that she would know the thief by sight if she ever saw him again.
lose sight of
Not to be able to see any longer.
I lost sight of Mary in the crowd.
I watched the plane go higher and higher until I lost sight of it.
To forget; overlook.
Johnny was so interested in the game he lost sight of the time.
No matter how rich and famous he became, he never lost sight of the fact that he had been born in the slums.
love at first sight
Любовь с первого взгляда.
Their love was at first sight, but unfortunately it didn’t last long.
Их любовь была любовью с первого взгляда, но к сожаленью, она не продлилась долго.
out of sight, out of mind
If one doesn't see something for an extended period of time, one tends to forget about it. A proverb.
After Caroline moved out of town, Ray soon found other women to date. As the saying goes, "out of sight, out of mind."