(a.) Done or being within doors; within a house or institution; domestic; as, indoor work.

PBX operator aboriginal accented all-absorbing alveolar amidships apical apico-alveolar apico-dental arch articulated assimilated automatic exchange average axial back banal banner barytone basal basic bedrock bilabial broad cacuminal capital cardinal center centermost central office centralized centric centroidal centrosymmetric cerebral champion checked chief close common concentrated consonant consonantal continuant controlling core crowning crucial deep dental dissimilated dominant dorsal elemental elementary embryonic equatorial equidistant essential first flat focal foremost front fundamental generative genetic geocentric germinal glide glossal glottal great guttural halfway hard headmost heavy hegemonic high important in embryo in ovo indispensable indoor inmost inner innermost inside interior intermediary intermediate internal intestine intimate intonated intrinsic inward key labial labiodental labiovelar lateral lax leading life-and-death life-or-death light lingual liquid long distance low machine-switching office magisterial main master material mean medial median mediocre mediterranean medium mesial mezzo mid middle middle-of-the-road middlemost middling midland midmost midships midway moderate monophthongal muted narrow nasal nasalized normal nuclear occlusive of vital importance omphalic open operator ordinary original outstanding overriding overruling oxytone palatal palatalized panel switching paramount pharyngeal pharyngealized phonemic phonetic phonic pitch pitched pivotal posttonic predominant preeminent pregnant preponderant prevailing primal primary prime primeval primitive primordial principal pristine protogenic radical ranking retroflex rounded routine rudimentary ruling salient seminal semivowel signal significant soft sonant sovereign standard star stellar stopped stressed strong substantive supereminent surd switchboard operator syllabic telephone exchange telephone office telephone operator telephonist tense thick throaty tonal tonic topflight twangy umbilical unaccented unrounded unstressed usual velar vital vocalic vocoid voiced voiceless vowel vowellike weak wide