Definition of custom:
use of goods and services, manners, legacy, employment, culture, style, mores, fashion, charge account, type, business, taste, tailored, account, system, procedure, deviation, usage, design, matter of course, consumption, departure, tailor-made, conspicuous consumption, consuetude, utilisation, way, charge card, practise, local color, agree, method, cash-and-carry, bespoken, commercial, bespoke, attitude, traffic, consumable, customs duty, trade, exercise, credit, caveat emptor, usance, rite, pattern, precedent, patronage, rule, practice, commercially, characteristic, mode, strangeness, custom-tailored, utilization, daily life, unwritten law, impost, vogue, customised, springer, economic consumption, custom-built, institution, brand-name, comparison-shop, custom-made, cut-rate, use, acquisition, take to, form, made-to-order, branded, inheritance, ceremony, customized, usual, brand loyalty, mold, customs, as is someone's wont, common practice, tradition, irregularity, praxis, trick or treat, character, habitude.
- conformity (part of speech: noun)
- habitual (part of speech: adjective)
- regularity (part of speech: noun)
- habit (part of speech: noun)