designation ... the appointment or selection of someone for a certain positon.
Her family celebrated her designation as the new mayor of the city.
out of wedlock (idiom) ... referrs to people who are not married.
they started a family out of wedlock.
breadwinner ... someone who provide financial support to his or her family.
the eldest daughter becomes a breadwinner.
forefront ... a position that is important
Education is the forefront of this country.
exacerbate ... to make thing worse
A corrupt government exacerbate this country's poverty.
hypothesize ... to make an educated guess
the researchers will conduct a study to see if what they hypothesized is correct
claim a stake .... to express one's intention to own something
siblings often fight to claim a stake to the television's remote control.
convert ... to change into something that is entirely different
they converted their house into a orphanage.
orphanage ... 孤児院