The lesson defines vocabulary as an inventory of lexical items, ranging from single words to complex chunks like idioms, phrasal verbs, and collocations. It details that "knowing" a word requires mastering its form (morphology), its literal and figurative meanings (denotation and connotation), and its appropriate use in specific social contexts. The material also explores sense relations—such as synonymy, antonymy, and hyponymy—while distinguishing between content and function words. Lastly, it highlights vocabulary's centrality to meaningful communication, emphasizing the development of productive and receptive knowledge through personal engagement and multiple exposures in rich contexts. 

At the end of Lecture 2, students will be able to:

1. Define vocabulary.
2. Distinguish between function words and content words.
3. Explain the three dimensions of word knowledge: form , meaning , and use.
4. Differentiate between denotation and connotation, understanding that while two words may share a literal reference, they may convey very different emotional undertones or associations.
5. Identify and categorize sense relations, including synonymy (similar meanings), antonymy (gradable and ungradable opposites), and hyponymy (hierarchical relations between general superordinates and specific co-hyponyms).
6. Contrast receptive and productive vocabulary knowledge, noting that receptive knowledge (recognizing words in input) is typically larger and acquired before productive knowledge (the ability to recall and use words naturally).

7. Differentiate between the three main approaches to vocabulary instruction: incidental learning (indirect exposure through a literate-rich environment), explicit instruction (systematic, teacher-directed presentation and practice), and independent strategy instruction (training students in dictionary usage and morphemic analysis).

8. Explain the psychological principles of vocabulary storage (CODE), demonstrating how to facilitate the transfer of lexical items from short-term to long-term memory by ensuring they are connected to prior knowledge, organized systematically, deeply processed through various senses, and explored in multiple ways.

9. Apply practical classroom techniques and assessment tools, such as using visuals and gestures for presentation, utilizing concept questions to verify understanding without repeating the target word, and encouraging students to maintain a personal vocabulary record system to help them make new words their own.