Apple

Apples were a common fruit on Earth.

The Fourth Doctor once claimed that he had hid up a tree and dropped apples on Isaac Newton's head. (TV: The Pirate Planet) Newton remained upset about that, as his nose bled for three days afterward. (AUDIO: Summer)

While possessed by the Mara, Tegan dropped apples upon Aris in order to get his attention. (TV: Kinda)

In the 12th century, while in the company of Robin Hood in Sherwood Forest, the Twelfth Doctor ate an apple and conducted a scan on it with his sonic screwdriver, unconvinced about the reality of his surroundings. (TV: Robot of Sherwood)

The Sixth Doctor carried an apple in his pockets. He gave it to Captain Emmanuel Swan, who was complaining about being hungry. (AUDIO: Doctor Who and the Pirates)

While at Shangri-La, a young boy handed the Seventh Doctor an apple. Melanie Bush repeatedly prevented him from eating it. (TV: Delta and the Bannermen)

Apples were served at King Gilgamesh's court in Uruk. (PROSE: Timewyrm: Genesys)

Whilst visiting the Worldsphere, the Seventh Doctor met a parachute that designed apple trees in its spare time. (PROSE: The Also People)

Following his regeneration, the Tenth Doctor found an apple in Howard's dressing gown, which Jackie had provided him with. Jackie claimed that this was because Howard "sometimes" got hungry in his sleep. (TV: The Christmas Invasion)

Following his tenth regeneration, the Eleventh Doctor thought he wanted an apple but didn't like it. Amelia Pond disliked apples when she was young, until her mother began carving happy faces into them. She gave an apple with a carved happy face on it to the Doctor, who promised to keep it for later. After travelling forward twelve years, the Doctor proved his identity to now-grown Amy Pond by showing her the same apple, still fresh. (TV: The Eleventh Hour) He later enjoyed an apple he found on a prison ship. (TV: The God Complex)

In 2025, apples were genetically modified to taste like other things to get children to eat them. Rose Tyler, while visiting a storybook-based theme park, took a bite of one that tasted like cheeseburger, only to spit it out in disgust. (COMIC: Down the Rabbit Hole)

At some point in the far future the word "apple" was used in the prevailing calendar system, as the year 5000000000 was known to the locals as 5.5/Apple/26. (TV: The End of the World)