English as a second language; ESL; TESOL ; Glottodidaktik; Lehrforschung; Pädagogische Linguistik; Pedagogical linguistics; Language teaching research ; Wortschatz (Sprachunterricht) ; Lernwortschatz; Vocabulary teaching ; MAELC ; Gesture communication ; Classroom communication; Instructional communication ; Semantic processing; Coding (psycholing., semant.) ; Second language acquisition (pragm.) ; Zweitspracherwerb (pragm.) ; Interactionist hypothesis (second language acquisition) ; Conversational analysis (second language acquisition) ; Zweitspracherwerb (lex.) ; Second language acquisition (lex.) ; Vocabulary (second language acquisition) ; Lemmata ; Ortspräposition; Lokale Präposition; Richtungspräposition; Preposition of movement; Directional preposition; Spatial preposition ; English (American) ; USA (English language in the) ; USA (engl. Sprache in den) ; English in the USA; Englisch in den USA; American English ; Latin America (Spanish language in) ; Lateinamerika (span. Sprache in) ; Spanish in Latin America