Reading Theme:

Language:

Font Size:

📕 rednote ID(小红书号)：3881567312

Crack: Definitions, Usage & Common Mistakes (3 meaning)

Meaning 1：break incompletely (crack)

crack 🔊

/kræk/

n./v.

to break something so that a line appears on its surface but it doesn't fall apart completely.

Crack an egg illustration showing the verb meaning to break open.

break incompletely 🔊

➕

/breɪk ˌɪnkəmˈpliːtli/

n./v.

To cause a hard or brittle object to develop a fissure or line of damage without shattering it completely.

📁 Category：Objects & Materials 🔖 Level：Beginner

📘 Details & Usage

📖 Root Explanation

From Old English 'cracian' (to make a sharp sound), akin to Middle Dutch 'craken'.

💡 Mnemonic

Think of the sound 'CR-ACK!' when something breaks, creating a line or solving a puzzle.

📖 Example

She was so nervous holding the antique vase that her knuckles turned white, afraid she might crack it. 🔊 She was so nervous holding the antique vase that her knuckles turned white, afraid she might break it incompletely.

🔗 Collocations

crack a nut – to break open the shell of a nut

crack a joke – to tell a funny joke

crack under pressure – to fail to withstand stress or pressure

🔄 Synonyms

fracture (v.) – to break or cause to break, often resulting in a clean split or crack.

split (v.) – to break or cause to break into parts, especially along a straight line.

chip (v.) – to break a small piece off the edge or surface of something hard.

🚫 Antonyms

mend (v.) – to repair something that is broken or damaged.

seal (v.) – to close something securely so that nothing can pass through.

🌱 Derivatives

cracked (adj.) – having a crack or cracks on the surface; (informal) crazy.

crackle (v./n.) – to make a series of light, sharp cracking sounds; such a sound.

cracker (n.) – a thin, crisp biscuit; a small explosive firework; (computing) one who breaks into security systems.

📖 Cultural Story

The word 'crack' originally described a sharp, sudden sound. Over time, its meaning expanded from the sound of breaking to the physical break itself, and later metaphorically to solving a difficult problem ('cracking a code'), reflecting its versatility in English.

Meaning 2：thin break line (crack)

crack 🔊

/kræk/

n./v.

a thin line on the surface of something where it has broken but not split into separate parts.

thin break line 🔊

➕

/θɪn breɪk laɪn/

n./v.

A narrow opening or fissure in a surface, formed where something has broken but not separated into pieces.

📁 Category：Objects & Materials 🔖 Level：Beginner

📘 Details & Usage

📖 Example

After the small earthquake, we noticed a tiny crack in the living room wall near the window. 🔊 After the small earthquake, we noticed a tiny thin break line in the living room wall near the window.

🔗 Collocations

hairline crack – a very fine, thin crack

crack in the ice – a fissure or split in a frozen surface

crack of dawn – the very first light of day; daybreak

🔄 Synonyms

fissure (n.) – a long, narrow opening or line of breakage, especially in rock or earth.

crevice (n.) – a narrow opening or crack in a rock or wall.

split (n.) – a lengthwise division or separation caused by splitting.

🚫 Antonyms

seam (n.) – a line where two pieces of fabric are sewn together; a line of junction.

seal (n.) – a device or substance used to close an opening tightly.

🌱 Derivatives

cracked (adj.) – having a crack or cracks on the surface; (informal) crazy.

crackpot (n./adj.) – (informal) an eccentric or foolish person; crazy.

Meaning 3：solve (a problem) (crack)

crack 🔊

/kræk/

n./v.

(informal) to finally find the solution to a difficult problem or understand something complicated.

Students crack a problem, showing the meaning to solve something difficult.

solve (a problem) 🔊

➕

/sɒlv (ə ˈprɒbləm)/

n./v.

To successfully decipher, understand, or find the solution to a complex, difficult, or puzzling matter.

📁 Category：School Education 🔖 Level：Intermediate

📘 Details & Usage

📖 Example

After hours of studying, I finally cracked the code for that difficult math problem. 🔊 After hours of studying, I finally solved the code for that difficult math problem.

🔗 Collocations

crack a case – to solve a crime or mystery

crack the secret – to discover or figure out a hidden truth

crack a smile – to finally begin to smile, often reluctantly

🔄 Synonyms

solve (v.) – to find an answer or solution to a problem or puzzle.

decipher (v.) – to succeed in understanding, interpreting, or identifying something obscure.

figure out (phr. v.) – to understand or find the solution to something by thinking.

🚫 Antonyms

baffle (v.) – to confuse or perplex someone completely.

stump (v.) – to be too difficult for someone to solve or understand.

🌱 Derivatives

cracker (n.) – a thin, crisp biscuit; a small explosive firework; (computing) one who breaks into security systems.