But to qualify for mailing at the First-Class Mail postcard price, it must be: 1  Rectangular. 2  At least 3-1/2 inches high x 5 inches long x 0.007 inch thick. 3  No more than 4-1/4 inches high x 6 inches long x 0.016 inches thick.
eligible - qualified for or allowed or worthy of being chosen; eligible to run for office; eligible for retirement benefits; an eligible bachelor. qualified - meeting the proper standards and requirements and training for an office or position or task; many qualified applicants for the job.
Dictionary entry details. â¢ ELIGIBILITY (noun) Meaning: The quality or state of being eligible. Classified under: Nouns denoting attributes of people and objects. Context examples: eligibility of a candidate for office / eligibility for a loan. Hypernyms (eligibility is a kind of...): making; qualification (an attribute that must be met or complied with and that fits a person for something) Hyponyms (each of the following is a kind of eligibility):