Front

to appeal

Back

to attract (sth)

Front

to make a call

Back

to contact someone by phone

Front

broaden

Back

to make wider or more extensive

Front

fulfil

Back

to complete or accomplish something

Front

grab

Back

to take hold of something quickly

Front

undertake

Back

to commit oneself to a task or responsibility

Front

wildest

Back

most extreme or intense

Front

grant

Back

to give or allow something

Front

submersible

Back

a vehicle designed to operate underwater

Front

submarine

Back

a watercraft capable of independent operation underwater