ずっと
The whole time, or by far
You'll be able to stress that something continues unbroken, or that it beats an alternative by a wide margin.
芽衣はずっと窓の外を見ていました。
mei wa zutto mado no soto o mite imashita.
What do you think this sentence means?
Mei was looking out of the window the whole time.
Extend through time or strengthen a comparison
ずっと can mean continuously or all along. In a comparison it means much or far more. The surrounding words tell you which use applies.
この部屋はあの部屋よりずっと広いです。
kono heya wa ano heya yori zutto hiroi desu.
This room is much larger than that room.
Form and use ずっと
With a time period, it extends the state through that period. With より, it strengthens the difference. Do not translate every occurrence as “always.”
この部屋はあの部屋よりずっと広いです。
kono heya wa ano heya yori zutto hiroi desu.
This room is much larger than that room.
これからもずっと友達です。
kore kara mo zutto tomodachi desu.
We will remain friends from now on.
昨日は一日中、ずっと家で寝ていました。
kinou wa ichinichijuu, zutto ie de nete imashita.
Yesterday I stayed home in bed the whole day.
新幹線はバスよりずっと速いです。
shinkansen wa basu yori zutto hayai desu.
The shinkansen is much faster than the bus.
子どものときから、ずっとこの町に住んでいます。
kodomo no toki kara, zutto kono machi ni sunde imasu.
I've lived in this town ever since I was a child.
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