Relating to, or having a theme (“subject”) or a topic.
Relating to a melodic subject.
Of or relating to a theme (“subdivision of the Byzantine empire”).
Of a word stem, ending in a vowel that appears in or otherwise influences the noun or verb's inflection.
A postage stamp that is part of a thematic collection.
Related to the current topic, or presented within context, relevant.
Well grounded or justifiable, pertinent.
Of an argument: whose conclusion is always true whenever its premises are true.
Genuine - as distinguished from efficient or regular - sacrament.
Of a formula or system: such that it evaluates to true regardless of the input values.
Acceptable, proper or correct; in accordance with the rules.