2-methyl-but-3-yn-2-ol

4-dichloro-but-2-ene

a centipede dies but never falls down

Acts but does not fight

all but

all but dissertation (ABD)

anything but

Beauty is but skin deep

body mass index BUT

bounded-but-unknown uncertainty

Break-up time of tears BUT

but brazing

BUT BUTton

but for

but I sense

but net

but now

but proof safety

but that