Every Day
Day After Day, For Days On End, Daily, Prolonged
noun
What happens when you take along a day? It becomes every day.
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
連日車を乗り回していたら、タイヤがすり減ってしまいました。
I was driving my car every day and the tires wore out.
連日、この時間になるとねむくなるんです。
Every day at this time I get sleepy.
祭りは連日大賑わいだ。
This festival has had a great turnout day after day.