Hebrew alphabet

1 :  a Semitic alphabet used since about the 5th century b.c. for writing Hebrew and in medieval and modern times used also for Yiddish and on occasion other languages —called also Aramaic alphabet — see alphabet table

2 :  the Semitic alphabet used in writing Hebrew until about the 5th century b.c. and on occasion as late as the 2d century a.d. —called also ancient Hebrew alphabet, early Hebrew alphabet, old Hebrew alphabet