IELTS language bank: Task 1 Pie Charts

A pie chart's specific describing challenge is that every segment is a share of one fixed whole, which means segments relate to each other in a genuinely different way from bars or line points: if one slice grows, at least one other slice must shrink correspondingly, since the total is always fixed at 100%. That zero-sum relationship is the single most useful thing a strong pie chart report exploits and a weak one ignores entirely — a Band 5-6 answer simply lists each segment's percentage in isolation, while a Band 7-8 answer explicitly connects one segment's change to another's as two sides of the same shift. This bank covers share-describing verbs, comparison language between segments, fraction-based phrasing, the specific two-pie comparison structure, and the grammar this chart type leans on more than any other.

For describing a single segment's share of the whole, "accounted for," "made up," "represented," "constituted," and "comprised" are the core verbs, and varying them across a report reads considerably more controlled than repeating "was" for every single segment: "Housing costs accounted for nearly a third of total household spending, while transport constituted a much smaller share." Note that "comprised" takes the whole as its subject in strict usage ("the pie comprised five categories") though it is now widely accepted the other way as well ("five categories comprised the pie"); either is safe for IELTS purposes, but knowing the distinction exists is worth having if a stricter examiner or reader notices.

For describing a segment's size relative to the whole using fractions rather than percentages, "just under a third," "close to two-fifths," "roughly one in five," "a little over half," and "barely a tenth" all translate a percentage into a more natural-sounding proportion, which varies a report's phrasing usefully when several percentages need mentioning in quick succession: "Roughly one in five respondents selected the third option, a little over half chose the first, and the remainder were split fairly evenly between the two remaining choices." Choosing between a fraction and a percentage is partly a stylistic choice and partly a precision one: a fraction like "roughly a quarter" is appropriate for a figure close to 25%, but forcing an awkward fraction onto a figure like 34% ("a little over a third") is only marginally more natural than simply stating the percentage directly, so reserve fraction phrasing for figures that land close to a clean fraction rather than applying it indiscriminately to every segment.

For comparing segments within a single pie chart, "a considerably smaller share than," "a markedly larger proportion than," "roughly comparable in size to," "dwarfed by," and "eclipsed by" all describe one segment against another rather than against the whole: "Transport made up a considerably smaller share than housing, and was in turn dwarfed by the combined total of housing and food together." "The largest single category," "the smallest segment," and "a minor slice of the total" identify a segment's rank among the others, directly comparable to a bar chart's ranking language but applied to shares of one whole rather than independent quantities.