jamming grade mark off

to mark off

get off the mark

off the mark

clear mark [= clearing mark]

End-of-Tape Mark (EOT Mark)

tidal bench mark [= tidal mark]

allowable shut-off time of fast shut-off valve

fall off [= bear off]

hang off [= stop off]

Off beat takes off

Off-Line Handwritten Chinese Character Recognition (off-line HCCR)

off-line trusted third party (off-STTP)

Off-on-off

one-off write-off

voltage cut off or current cut off

[measuring] mark

100-mark system

a man of mark