like / same / similar / together / alike / with

= + 𠮛 : Tommy Turtle (tu) is stapling (冂) a magical scroll (𠮛) to the wall of the engine's kitchen ((e)ng2). On it he wrote that he's looking for two twins (mnemonic symbol for 同).
see 衚衕|胡同[hu2 tong4]

同 character breakdown

radical in Chinese characters (Kangxi radical 13), occurring in 用[yong4], 同[tong2], 網|网[wang3] etc, referred to as 同字框[tong2 zi4 kuang4]

= + : Mnemonic symbol from the shape of the character: kind of looks like a map.

Zeus (ju) found a secret map (冂) that tells the location of a golden dinosaur bone (丨) in front of the engine ((e)ng1), so he took a plow (㇆) and dug up everything. He actually found a couple of dinosaur bones, but not a golden one.
Character component without intrinsic meaning

𠮛 = + : This character looks like a scroll, on which your aim is written. A scroll with the paper made from mandarins (口), and a flute (一) to wrap it all up.

Characters with 同 as component

surname Xing
feeling or desire to do sth / interest in sth / excitement

= + + : Marie Curie found a sea star attached to a big eight ball in the engine's bathroom. As she is a curious and interested scientist, she wants to investigate the sea star, so she pokes it with a flute and tries to tickle it with a daisy.

= + + : I would say this one looks definitely like a hedgehog, but since there's already a character for hedgehog, let's call this one a sea star.
to rise / to flourish / to become popular / to start / to encourage / to get up / (often used in the negative) to permit or allow (dialect) / maybe (dialect)
variant of 筒[tong3]

= + : Tommy Turtle (tu) managed to build a twin (同) cylinder (筒) engine out of bamboo sticks (⺮) inside of the engine ((e)ng3).
tube / cylinder / to encase in sth cylindrical (such as hands in sleeves etc)

= + : Tommy Turtle (tu) managed to build a twin (同) cylinder (筒) engine out of bamboo sticks (⺮) inside of the engine ((e)ng3).
cave / hole / zero (unambiguous spoken form when spelling out numbers) / CL:個|个[ge4]

= + : Doggy Dog (du) finds two twins (同) have fallen down the cave (洞) in the engine's bathroom ((e)ng4). He immediately begins to dig a tunnel to bring them a bottle of water (氵) until more help arrives.
copper (chemistry) / see also 紅銅|红铜[hong2 tong2] / CL:塊|块[kuai4]

= + : Tommy Turtle (tu) runs a copper (铜) mine in the engine's kitchen ((e)ng2). He managed to force two twins (同) to work for him and mine the copper using golden harpoons (钅).
tree name (variously Paulownia, Firmiana or Aleurites)
ketone
Dong ethnic group (aka Kam people)
ignorant

Words with 同

to treat everyone equally favorably (idiom); not to discriminate between people
lit. not a common chord (idiom); outstanding / brilliant / out of the common run
similarly hereinafter
lit. mustn't speak of two things on the same day (idiom); not to be mentioned in the same breath / incomparable
to agree by chance (idiom); taking the same action without prior consultation
cohomology (invariant of a topological space in math.)
three horses at the same trough (idiom, alluding to Sima Yi 司馬懿|司马懿[Si1 ma3 Yi4] and his two sons); conspirators under the same roof
three generations under one roof

Sentences with 同

yú
nǐ
men
zhè
hua̅
guǒ
sha̅n
kě
shì
dà
bù
xia̅ng
tóng
a