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]

= + : Kind of looks like a map. Zeus found a secret map that tells the location of a golden dinosaur bone in front of the engine, so he took a plough and digged 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

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

= + + : 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.

= + + : 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.
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)
surname Xing
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).
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).
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