Concordancia Strong's

Feast of Weeks,
Also named: pentēkostē (πεντηκοστή "Pentecost" G4005)
This name means seven, 1) seven, period of seven (days or years), heptad, week
1a) period of seven days, a week
1a1) Feast of Weeks
1b) heptad, seven (of years)
Also means: sha.vu.a (שָׁבוּעַ "week" H7620I) 1) seven, period of seven (days or years), heptad, week
1a) period of seven days, a week
1a1) Feast of Weeks
1b) heptad, seven (of years)