noun-modifying (irregular), noun
Used for the first stage, step, or round of something; often appears in compounds like 一次試験 (first exam) or 一次審査 (preliminary screening).
noun-modifying (irregular)
Refers to primary sources, original materials, or direct (first-hand) information, as opposed to secondary or processed versions.
noun-modifying (irregular)
linear; first-order
Mathematics term for linear functions, equations, or first-order relationships.
If you pass the first exam, you can proceed to the second exam.
As a preliminary measure, we administered first aid.
It is important to use primary sources for research.
Please check the original information before making a decision.
The graph of a linear function becomes a straight line.
This problem can be solved with a linear equation.
Means 'second' or 'secondary'; often used in contrast to 一次 for stages, sources, or mathematical order.
Adjectival form meaning 'primary' or 'temporary'; 一次 is more commonly used as a pre-noun modifier in compounds.
一次 means 'primary/first' while 二次 means 'secondary/second', as in 一次試験 (first-round exam) vs 二次試験 (second-round exam).
Standard kanji spelling.
Numeric variant, common in technical or abbreviated contexts.
Compound of 一 (いち, 'one') and 次 (じ, 'order' or 'next'). The combination follows standard Sino-Japanese word formation.
linear transformation