Ecc 9:10
5
וְחֶשְׁבּוֹן֙
v'chesh'bon
ki ʾein maʿa·seh v'chesh'bon
for there is no work or plan
Ecc 7:25
4
וְחֶשְׁבּ֑וֹן
and an explanation;
Num 32:3
3
וְחֶשְׁבּ֖וֹן