sabbatical; sabbatical leave
A period of leave granted to a researcher or academic for study or travel, typically from a university or research institution.
The professor is on sabbatical leave, conducting research abroad.
I completed a new paper during my sabbatical.
Katakana loanword for 'sabbatical', often used in academic contexts similarly to 研究休暇, but 研究休暇 explicitly includes the kanji for 'research' and 'leave', making it more specific to research-related leave.
General term for 'holiday' or 'leave'. 研究休暇 is a specific type of leave for research purposes.
Compound of 研究 (research) and 休暇 (leave, vacation). The term is a direct translation of the English 'sabbatical leave' used in academic settings.