Reading Theme:
Chart Definition, Types & Practical Usage (3 meaning)
Meaning 1：data diagram (chart)
chart
/tʃɑːrt/
n.
A picture that uses shapes and lines to show information, like numbers or how things change.
data diagram
➕
/ˈdeɪtə ˈdaɪəɡræm/
n.
A visual representation that uses graphical elements like bars, lines, or pies to display quantitative information or trends.
📘 Details & Usage
📖 Root Explanation
From Latin 'charta' (paper, map), derived from Greek 'khartēs'.
💡 Mnemonic
Chart your ART: A visual ART for data or maps to start.
📖 Example
The teacher drew a colorful bar chart on the board to show how many students preferred each sport.
The instructor created a vibrant bar chart on the whiteboard to illustrate student sports preferences.
🔗 Collocations
bar chart – a chart that uses bars to represent data
pie chart – a circular chart divided into slices to show proportions
line chart – a chart that uses lines to show changes over time
🔄 Synonyms
🌱 Derivatives
📖 Cultural Story
The term 'chart' originates from Latin 'charta', meaning a sheet of paper or map. Historically used for nautical navigation since the 16th century, it now encompasses data visualizations in fields like business and science.
Meaning 2：popularity list (chart)
chart
/tʃɑːrt/
n.
A list that shows which songs, movies, etc., are the most popular at a certain time.
popularity list
➕
/ˌpɑːpjəˈlærəti lɪst/
n.
A ranked listing that indicates the current popularity or success of items such as songs, movies, or books.
📘 Details & Usage
📖 Example
Her new single jumped to the top of the music charts within a week of its release.
Her latest song quickly reached the number one spot on the music popularity rankings after its debut.
🔗 Collocations
music chart – a list ranking songs by popularity
top of the charts – the highest position in a popularity ranking
chart position – the rank of an item on a chart
🔄 Synonyms
ranking (n.) – a list of items in order of performance or preference
leaderboard (n.) – a board or list showing the leading competitors
hit parade (n.) – a list of popular songs, especially in historical context
🌱 Derivatives
chart-topper (n.) – a song or item that reaches the top of a chart
Meaning 3：nautical map (chart)
chart
/tʃɑːrt/
n.
A special map used by sailors for sailing on the sea, showing depths, coastlines, and dangers.
nautical map
➕
/ˈnɔːtɪkəl mæp/
n.
A specialized map designed for maritime navigation, detailing water depths, coastlines, hazards, and other features essential for safe sea travel.
📘 Details & Usage
📖 Example
The captain carefully studied the nautical chart to plot a safe course through the shallow waters.
The ship's captain examined the sea map carefully to navigate a safe path through the treacherous waters.
🔗 Collocations
nautical chart – a map used for navigation at sea
navigation chart – a chart that aids in plotting courses for travel
chart table – a table on a ship where charts are spread out for study
🔄 Synonyms
map (n.) – a representation of an area of land or sea showing physical features
sea map (n.) – a map specifically for maritime use
hydrographic chart (n.) – a detailed chart of water bodies and their characteristics
🌱 Derivatives
chartroom (n.) – a room on a ship where charts are kept and used
chartmaker (n.) – a person who creates charts, especially nautical ones
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