Pronunciation: /lɔŋ sɪns/
adverb for a long time in the past
A1 I haven't seen my childhood friend long since we graduated from high school.
A2 She had long since forgotten about the argument they had last week.
B1 The old house had long since been abandoned by its owners.
B2 The technology they were using had long since become obsolete.
C1 The ancient ruins had long since been explored by archaeologists.
C2 The artist's work had long since been recognized as groundbreaking in the art world.
conjunction used to indicate that something happened a long time ago
A1 I haven't seen my childhood friend in a long since we graduated from high school.
A2 She had long since forgotten about the argument they had last year.
B1 The old library had long since been converted into a modern bookstore.
B2 By the time he arrived, the party had long since ended.
C1 The company had long since outgrown its original office space.
C2 Having long since achieved his goals, he was now looking for new challenges.
formal It has long since been established that the earth revolves around the sun.
informal We should have left long since, the party is boring.
slang I should have ghosted that guy long since, he's so annoying.
figurative The memories of our childhood have long since faded into the past.
longed since
long since
will long since
have long since
is long since
long since
as long since
to long since
long sinces
long since