hard / strong / solid / sure / assuredly / undoubtedly / of course / indeed / admittedly

= + : Gitta Giraffe is building a hard and solid stronghold inside the bathroom's space station. The stronghold consists of a cloister inside a wooden box.

固 character breakdown

surname Gu
ancient / old / paleo-

= + : Mnemonic symbol: at least on German maps, this character actually resembles a cloister.

Oh no! Gitta Giraffe (gu) found that the golden cross (十) broke off of the cloister (古) in the space station's living room (Ø3)! She skewers a mandarin (口) on top of the cloister so that she can skewer the broken off cross back on to fix it.
enclosure

Mnemonic symbol: a plastic enclosure. Willy Walrus (w) is keeping frozen fish in an enclosure (囗) in the Eiffel Tower's kitchen (ei2).

Characters with 固 as component

(classifier used before a noun that has no specific classifier) / (bound form) individual

= + : Mnemonic symbol: Neanderthal Man (人). Neanderthal Man (人) needs to use the elevator's bathroom (e4) but it's occupied by Guy Fawkes (g), and there's only space for one individual (个). Impatiently Neanderthal Man knocks on the door using his dinosaur bone (丨).
variant of 個|个[ge4]
used in 自個兒|自个儿[zi4 ge3 r5]
obstinate disease / to restrain / to stop
steep-sided flat-topped mountain / mesa / (element in mountain names)
to dry / to dry up
Xenocypris, genus of cyprinid fish found in eastern Asia
place name
dried up / dry / exhausted / tired
variant of 崮[gu4]
obstinate disease / (of passion, hobbies) long-term
variant of 禍|祸, disaster

Words with 固

firm / firmly / hard / stable
deep-rooted (problem etc)
very stubborn / very stubborn person / die-hard
tchoukball (loanword)
to choose what is good and hold fast to it (idiom)
when the root is firm, the branches flourish
Telugu or Telegu, the official language of Andhra Pradesh, India
deep, closed and refusing (idiom); obstinate / stubborn and perverse
Loi-kaw, capital of Kaya state, Myanmar

Sentences with 固

固 currently does not appear in any sentence.