This is the 11163rd most frequent Korean word.
기억이라
"기억이라" translates to "it is memory" or "as for memory" in English, depending on context.
In this sentence, '기억이라' introduces a clause explaining that the subject being referred to is a memory from a specific time.
어릴 때의 기억이라 잊을 수 없어요.
It's a memory from my childhood, so I can't forget it.
Here, '기억이라' specifies that the topic is a precious memory, framing the assertion as a reason or cause.
소중한 기억이라 소중하게 간직하고 싶어요.
It's a precious memory, so I want to cherish it dearly.
In this usage, '기억이라' indicates affiliation with a specific context (that day), establishing why it has vividness or importance.