英和和英

to double

twofold

to fold in two

to double oneself

divide by two

to be double-tongued

to break in two

to double the complement

double‐tongued

bivalve

increase twofold

increase twofold

pay double

being twofold

divisible by two

to slap repeatedly

to disturb something

to reclaim

become inflated

to move down―carry down

to neglect―slight―be careless of―anything

to hit something

produce in excess

make brittle

to worry about something

make complex

to burst open

（空気なら）to rarefy air―（酸なら）―dilute an acid―（薬なら）―attenuate a medicine

divide into pieces

to decide that somebody has not passed an examination