Related by context. Frequent words. (Click for all words.) 66 vocalization 62 vocalizations 51 gesticulations 51 mimicry 50 yelps 50 trill 50 auditory 49 birdsong 49 trills 49 copulation 49 grunting 49 whinny 49 guttural 49 echolocation 48 mating 48 intonation 47 fortissimo 47 vocalizing 47 trilling 47 phonemes 46 warbling 46 rhythmic patterns 46 loudness 46 rhythmic 45 genital organs 45 amplification 45 hornbills 45 mating rituals 45 procreative 45 intonations 45 harmonics 45 intelligibility 45 habituation 44 yowl 44 octaves 44 neuronal activity 44 auditory cortex 44 rhythmical 44 synchrony 44 emotionality 44 sensory input 44 kilohertz 44 legato 44 enunciation 43 inflections 43 coitus 43 bleats 43 olfaction 43 modulations 43 grunts 43 vowel sounds 43 vibrato 43 facial expressions 43 interludes 43 timbre 43 tonal 43 emoting 43 mooing 43 sonorities 43 wah wah 43 bodily 43 croaking 42 declamation 42 toms 42 falsettos 42 sensuousness 42 pianissimo 42 cuckoos 42 forebrain 42 syllables 42 vocalize 42 noises 42 timbres 42 tui 42 tonality 42 melody 42 scat singing 42 mewing 42 vocal melodies 42 excitability 42 expressiveness 42 performative 42 fecundity 42 repetition 41 arpeggio 41 tonalities 41 grammatical 41 neural circuitry 41 shriek 41 harmonic 41 squawks 41 bodily function 41 naturalness 41 mating ritual 41 breathy 41 chordal 41 stentorian 41 midbrain 41 mimetic 41 mannerism 41 musicality