Difference between Sundown and Tonight

SUNDOWN vs TONIGHT: NOUN

Morocco, Hurry, Tonight, Dark, Sun, Night, Twilight, Evening, Dawn, Sunup, Daybreak, Sunrise, Nightfall, Dusk, Sunset

Dark, Late, Overnight, Parade, Now, Nightfall, Sundown, Dinner, Wednesdays, Afternoon, Today, Evening, Night, This night, This evening

Morocco, Hurry, Tonight, Dark, Sun, Night, Twilight, Evening, Dawn, Sunup, Daybreak, Sunrise, Nightfall, Dusk, Sunset

Later, Dark, Late, Overnight, Parade, Now, Nightfall, Sundown, Dinner, Wednesdays, Afternoon, Today, Evening, Night, This evening

Some might choose to observe their Sabbath from sundown on Saturday to sundown on Sunday.
Sabbath School onthe Sabbath hours from sundown Friday to sundown Saturday, theymay ask why we do this, and a line for dialogue is opened.
For Yom Kippur, which only occurs for one day, the fast is observed from sundown to sundown.
Atena was intrigued by Yael's practice of not turning electric switches on or off between sundown Friday and sundown Saturday.
The hot plate was left on for the Sabbath, from sundown Friday to sundown Saturday.
The meal would only start after sundown because Passover begins after sundown.
The Sabbath was kept from sundown on Saturday until sundown on Sunday.
According to ancient Jewish reckoning, the Passover Feast day would have run from sundown Thursday until sundown on Friday.
Should sabbath, from sundown to sundown, be celebrated there every seven years and for a whole year?
The Jews measured a day from sundown to sundown.

Dying tonight, Dying tonight, Dying on the old Camp ground.
Going to the grocery store tonight, grabbing a couple bottles of wine, fine cheese, and going to soak this one in tonight.
So tonight I thought maybe if I took a shower it would wash away the thoughts, but tonight it did not work.
Billy Hancock hit some clutch threes again tonight, and Jake Ruzicka and Cameron Quick did a nice job on the glass tonight.
NO problem getting auto and then got denied on the homeowners tonight from Esurance and Liberty Mutual tonight.
Putting on my best cool face for the show tonight at Biscuits and Blues in San Francisco tonight.
They sang about pink torpedoes and rocking you tonight tonight, but some real lyrics are just as ridiculous.
ANNOUNCER: Tonight, on The Tonight Show, movie star, George Clooney.
Showbiz Tonight, Nancy Grace and Prime News Tonight.
But tonight ah tonight is going to be different.